Remove comment from FrameLoader that is not valid/important anymore because addExtraFieldsToRequest does not set the Origin header since r259036.
Created attachment 396655 [details] Patch
Committed r260205: <https://trac.webkit.org/changeset/260205> All reviewed patches have been landed. Closing bug and clearing flags on attachment 396655 [details].
<rdar://problem/61896123>