[iOS Family] Remove the concept of custom fallback fonts
Created attachment 406919 [details] Patch
<rdar://problem/67853621>
Created attachment 408078 [details] Patch
Tools/Scripts/svn-apply failed to apply attachment 408078 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 408099 [details] Patch for committing
Committed r266673: <https://trac.webkit.org/changeset/266673> All reviewed patches have been landed. Closing bug and clearing flags on attachment 408099 [details].