As per https://github.com/w3c/trusted-types/pull/486 the existing protections on embed and object are no longer required, so remove them from WebKit and the tests.
Pull request: https://github.com/WebKit/WebKit/pull/26554
<rdar://problem/125904659>
Committed 277201@main (18692f5a98be): <https://commits.webkit.org/277201@main> Reviewed commits have been landed. Closing PR #26554 and removing active labels.