Remove no longer needed WebKitAdditions include for JavaScriptCorePrefix.h
Created attachment 398325 [details] Patch
Comment on attachment 398325 [details] Patch r=me
Committed r261067: <https://trac.webkit.org/changeset/261067> All reviewed patches have been landed. Closing bug and clearing flags on attachment 398325 [details].
<rdar://problem/62817263>