chore: start tracking obsolete files

synth.metadata

@@ -3,8 +3,8 @@
     {
       "git": {
         "name": ".",
-        "remote": "git@github.com:googleapis/google-auth-library-nodejs.git",
-        "sha": "502a3d954bb13dfcf5a22216504e858135382a83"
+        "remote": "https://github.com/googleapis/google-auth-library-nodejs.git",
+        "sha": "65be3a83fb7af6bde79f6cfc46675c16ca999455"
       }
     },
     {
@@ -14,5 +14,58 @@
         "sha": "ba9918cd22874245b55734f57470c719b577e591"
       }
     }
+  ],
+  "generatedFiles": [
+    ".eslintignore",
+    ".eslintrc.json",
+    ".gitattributes",
+    ".github/ISSUE_TEMPLATE/bug_report.md",
+    ".github/ISSUE_TEMPLATE/feature_request.md",
+    ".github/ISSUE_TEMPLATE/support_request.md",
+    ".github/PULL_REQUEST_TEMPLATE.md",
+    ".github/release-please.yml",
+    ".github/workflows/ci.yaml",
+    ".kokoro/.gitattributes",
+    ".kokoro/common.cfg",
+    ".kokoro/continuous/node10/common.cfg",
+    ".kokoro/continuous/node10/docs.cfg",
+    ".kokoro/continuous/node10/test.cfg",
+    ".kokoro/continuous/node12/common.cfg",
+    ".kokoro/continuous/node12/lint.cfg",
+    ".kokoro/continuous/node12/samples-test.cfg",
+    ".kokoro/continuous/node12/system-test.cfg",
+    ".kokoro/continuous/node12/test.cfg",
+    ".kokoro/docs.sh",
+    ".kokoro/lint.sh",
+    ".kokoro/populate-secrets.sh",
+    ".kokoro/presubmit/node10/common.cfg",
+    ".kokoro/presubmit/node12/common.cfg",
+    ".kokoro/presubmit/node12/samples-test.cfg",
+    ".kokoro/presubmit/node12/system-test.cfg",
+    ".kokoro/presubmit/node12/test.cfg",
+    ".kokoro/publish.sh",
+    ".kokoro/release/docs-devsite.cfg",
+    ".kokoro/release/docs-devsite.sh",
+    ".kokoro/release/docs.cfg",
+    ".kokoro/release/docs.sh",
+    ".kokoro/release/publish.cfg",
+    ".kokoro/samples-test.sh",
+    ".kokoro/system-test.sh",
+    ".kokoro/test.bat",
+    ".kokoro/test.sh",
+    ".kokoro/trampoline.sh",
+    ".kokoro/trampoline_v2.sh",
+    ".mocharc.js",
+    ".nycrc",
+    ".prettierignore",
+    ".prettierrc.js",
+    ".trampolinerc",
+    "CODE_OF_CONDUCT.md",
+    "CONTRIBUTING.md",
+    "LICENSE",
+    "README.md",
+    "api-extractor.json",
+    "renovate.json",
+    "samples/README.md"
   ]
 }