This is enabled everywhere now. Remove the build flag.
Created attachment 461211 [details] WIP
Pull request: https://github.com/WebKit/WebKit/pull/2729
Committed 252840@main (609b24aff7be): <https://commits.webkit.org/252840@main> Reviewed commits have been landed. Closing PR #2729 and removing active labels.
<rdar://problem/97619973>