Remove the configuration points where we prevent Xcode from using the new build system. This is the first patch of the XCBuild migration that will have substantial developer impact: All command-line builds (via Make and build-webkit), and all project builds (from opening one project in Xcode) will use XCBuild. (Builds from WebKit.xcworkspace already use XCBuild.)
<rdar://problem/91388482>
Created attachment 457002 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Committed r292959 (249724@main): <https://commits.webkit.org/249724@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 457002 [details].