Remove unused sandbox extension rule for RootDomainUserClient.
Created attachment 455767 [details] Patch
Comment on attachment 455767 [details] Patch r=me
Comment on attachment 455767 [details] Patch Thanks for reviewing!
Committed r291880 (248879@main): <https://commits.webkit.org/248879@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 455767 [details].
<rdar://problem/90851286>