diff --git a/api/PayerErrors.json b/api/PayerErrors.json
deleted file mode 100644
index 7f83f0bf6b487d..00000000000000
--- a/api/PayerErrors.json
+++ /dev/null
@@ -1,536 +0,0 @@
-{
-  "api": {
-    "PayerErrors": {
-      "__compat": {
-        "mdn_url": "https://developer.mozilla.org/docs/Web/API/PayerErrors",
-        "support": {
-          "chrome": [
-            {
-              "version_added": "71",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            },
-            {
-              "version_added": "69",
-              "version_removed": "71",
-              "alternative_name": "PayerErrorFields",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            }
-          ],
-          "chrome_android": [
-            {
-              "version_added": "71",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            },
-            {
-              "version_added": "69",
-              "version_removed": "71",
-              "alternative_name": "PayerErrorFields",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            }
-          ],
-          "edge": {
-            "version_added": "≤79",
-            "flags": [
-              {
-                "type": "preference",
-                "name": "#web-payments",
-                "value_to_set": "Enabled"
-              }
-            ]
-          },
-          "firefox": [
-            {
-              "version_added": "64",
-              "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-            },
-            {
-              "version_added": "56",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.payments.request.enabled",
-                  "value_to_set": "true"
-                },
-                {
-                  "type": "preference",
-                  "name": "dom.payments.request.supportedRegions",
-                  "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                }
-              ]
-            }
-          ],
-          "firefox_android": [
-            {
-              "version_added": "64",
-              "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-            },
-            {
-              "version_added": "56",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "dom.payments.request.enabled",
-                  "value_to_set": "true"
-                },
-                {
-                  "type": "preference",
-                  "name": "dom.payments.request.supportedRegions",
-                  "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                }
-              ]
-            }
-          ],
-          "ie": {
-            "version_added": false
-          },
-          "opera": {
-            "version_added": false
-          },
-          "opera_android": {
-            "version_added": false
-          },
-          "safari": {
-            "version_added": "12.1"
-          },
-          "safari_ios": {
-            "version_added": "12.2"
-          },
-          "samsunginternet_android": {
-            "version_added": false
-          },
-          "webview_android": {
-            "version_added": false
-          }
-        },
-        "status": {
-          "experimental": false,
-          "standard_track": false,
-          "deprecated": true
-        }
-      },
-      "email": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PayerErrors/email",
-          "support": {
-            "chrome": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerEmailError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "chrome_android": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerEmailError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "edge": {
-              "version_added": "≤79",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            },
-            "firefox": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "firefox_android": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": "12.1"
-            },
-            "safari_ios": {
-              "version_added": "12.2"
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "name": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PayerErrors/name",
-          "support": {
-            "chrome": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerNameError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "chrome_android": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerNameError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "edge": {
-              "version_added": "≤79",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            },
-            "firefox": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "firefox_android": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": "12.1"
-            },
-            "safari_ios": {
-              "version_added": "12.2"
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      },
-      "phone": {
-        "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PayerErrors/phone",
-          "support": {
-            "chrome": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerPhoneError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "chrome_android": [
-              {
-                "version_added": "71",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              },
-              {
-                "version_added": "69",
-                "version_removed": "71",
-                "alternative_name": "payerPhoneError",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "#web-payments",
-                    "value_to_set": "Enabled"
-                  }
-                ]
-              }
-            ],
-            "edge": {
-              "version_added": "≤79",
-              "flags": [
-                {
-                  "type": "preference",
-                  "name": "#web-payments",
-                  "value_to_set": "Enabled"
-                }
-              ]
-            },
-            "firefox": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "firefox_android": [
-              {
-                "version_added": "64",
-                "notes": "Enabled by default in nightly US English builds of Firefox 64 and later, and on other localizations when geolocation indicates the user is in the United States or Canada."
-              },
-              {
-                "version_added": "56",
-                "flags": [
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.enabled",
-                    "value_to_set": "true"
-                  },
-                  {
-                    "type": "preference",
-                    "name": "dom.payments.request.supportedRegions",
-                    "value_to_set": "<em>comma-delineated 2-character country code list</em>"
-                  }
-                ]
-              }
-            ],
-            "ie": {
-              "version_added": false
-            },
-            "opera": {
-              "version_added": false
-            },
-            "opera_android": {
-              "version_added": false
-            },
-            "safari": {
-              "version_added": "12.1"
-            },
-            "safari_ios": {
-              "version_added": "12.2"
-            },
-            "samsunginternet_android": {
-              "version_added": false
-            },
-            "webview_android": {
-              "version_added": false
-            }
-          },
-          "status": {
-            "experimental": false,
-            "standard_track": false,
-            "deprecated": true
-          }
-        }
-      }
-    }
-  }
-}