This reverts commit 017c5a8.

`amp-*.js` binaries for Bento-compatible extensions provide an `<amp-*>` element that can be used **with** `v0.js`, and a `<bento-*>` element that can be used **without** `v0.js`.

We'd like that Bento elements are used from `bento-*.js` in Bento mode. This unblocks release since we'll be able to include the scripts in Bento mode using the correct URL.

Eventually, this binary will only provide the Bento element, while `amp-*.js` will provide only an AMP element. In the meantime, we alias the multiple-compatibility binary so that `bento-*.js` can be used as soon as possible.

…5918)

This reverts commit 59a07a3.

…f class (#35861)

* Changed classes for template attr

* Simplified rules

* Fixed some comments

* Remove unused template

* Reverted pan demo to image

* Removed unused const

* Added CTA Migration page-outlink experiment, added logic to have it load during the Promise chain in the layout callback

* fixed some circleCI errors

* fixed some nits

* refactored cta migration and added non-hardcoded values

* fixed cricleci spacing issues

* fixed cricleci spacing issues

* Added description and re-comtting due to circleCI

* Added description and re-comtting due to circleCI

* Fixed more code review nits

* Fixed layout callback unit test

* Added back in code-breaking refactor

* will open new PR to fix page-attachment prod bug

* fixed main merge

* renamed the expirement to make it clear it was associated with ads

* create centralized hooks for onLoad/onLoading/onError in PreactBaseElement

* update instances where components used their own (similar) hooks

* toggle placeholders for bento components with dynamic content

* update storybook stories to demonstrate placeholders/fallbacks
* update closure typings
* update docs