Remove a lot of unnecessary call to Ref::copyRef() now that Ref is copyable.
Created attachment 402590 [details] Patch
Created attachment 402591 [details] Patch
Committed r263422: <https://trac.webkit.org/changeset/263422> All reviewed patches have been landed. Closing bug and clearing flags on attachment 402591 [details].
<rdar://problem/64665995>
<rdar://problem/64665996>