Remove LegacySchemeRegistry::canServiceWorkersHandleURLScheme now that is no longer being used
Created attachment 397941 [details] Patch
Created attachment 397958 [details] Patch
Committed r261169: <https://trac.webkit.org/changeset/261169> All reviewed patches have been landed. Closing bug and clearing flags on attachment 397958 [details].
<rdar://problem/62887880>