Remove lockdown mode related ENABLE macro
<rdar://problem/117502008>
Pull request: https://github.com/WebKit/WebKit/pull/19573
Committed 269832@main (96e257a27d80): <https://commits.webkit.org/269832@main> Reviewed commits have been landed. Closing PR #19573 and removing active labels.
Re-opened since this is blocked by bug 264439