Rather than defining them and calling ASSERT_NOT_REACHED, remove them and replace their callers with ASSERT_NOT_REACHED.
Pull request: https://github.com/WebKit/WebKit/pull/1631
Committed r295669 (251674@main): <https://commits.webkit.org/251674@main> Reviewed commits have been landed. Closing PR #1631 and removing active labels.
<rdar://problem/95519943>