Disable widevine cdm component in linux

We are not ready to use chrome's widevine cdm component updater in
linux. We are using our own widevine updater for now.
Our widevine updater should be integrated with widevine cdm component
updater.
Issue: brave/brave-browser#7081

patches/third_party-widevine-cdm-widevine.gni.patch

@@ -1,14 +1,13 @@
 diff --git a/third_party/widevine/cdm/widevine.gni b/third_party/widevine/cdm/widevine.gni
-index 580e5bbcfcb4e90810d9aac53a2bd03776070b92..ba6bfd659cedd4dc9b06259850e493210e332762 100644
+index 580e5bbcfcb4e90810d9aac53a2bd03776070b92..ba09d096bfbe598251eeca01e9ef155f9408953c 100644
 --- a/third_party/widevine/cdm/widevine.gni
 +++ b/third_party/widevine/cdm/widevine.gni
-@@ -37,6 +37,9 @@ enable_widevine_cdm_component =
+@@ -37,6 +37,8 @@ enable_widevine_cdm_component =
 
  # Widevine CDM is bundled as part of Google Chrome builds.
  bundle_widevine_cdm = enable_library_widevine_cdm && is_chrome_branded
-+if (brave_chromium_build) {
-+  bundle_widevine_cdm = enable_library_widevine_cdm && is_desktop_linux
-+}
++bundle_widevine_cdm = enable_library_widevine_cdm && is_desktop_linux
++enable_widevine_cdm_component = enable_library_widevine_cdm && (is_win || is_mac)
 
  enable_widevine_cdm_host_verification =
      enable_library_widevine_cdm && enable_cdm_host_verification