Remove validations for amp-facebook-like:1.0

[caroqliu]

This PR reverts the amp-facebook-like portion of #34798 following #34969. This does not break any existing valid AMP pages as the original PR is not yet released.

While use of the new 1.0 version of amp-facebook-like will still be valid AMP, its import script will come from the amp-facebook extension. Once amp-facebook-like is registered via AmpFacebook, validations will be updated accordingly. cc @westonruter

[amp-owners-bot]

Hey @ampproject/wg-caching! These files were changed:

extensions/amp-facebook-like/1.0/test/validator-amp-facebook-like.html
extensions/amp-facebook-like/1.0/test/validator-amp-facebook-like.out
extensions/amp-facebook-like/validator-amp-facebook-like.protoascii

[twifkak]

/cc @banaag