Cleanup WebCore.xcodeproj/project.pbxproj
Some file references in the project file are invalid after r255241.
Created attachment 390403 [details] Patch
Comment on attachment 390403 [details] Patch Clearing flags on attachment: 390403 Committed r256372: <https://trac.webkit.org/changeset/256372>
All reviewed patches have been landed. Closing bug.
<rdar://problem/59364336>