🐛Don't report error when amp-google-client-id-api is set to gtag (#21970)
🐛Don't report error when amp-google-client-id-api is set to gtag (#21970)

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Prit warning message for clients who opted into gtag's client ID.

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Make sure that AMP does not report errors for gtag API

* Removed unnecessary tetst

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* Renamed error message, downgraded to warning.

* Fix lint warnings.

* Fix lint warnings.

* Fix lint warnings.

* Fix lint warnings.

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