Hygiene: Remove redundant include in uploads

LeadPhotoUploaderButton inherits from PhotoUploaderButton the isSupported
property, no need to include it here.

Change-Id: Ic233331f2554c6735e72a7fb67df48c391d0c310
Hygiene: Update editor documentation

Change-Id: I690c83742dc3711f42c935581e4942ea51c9fa6d
Merge "Hygiene: Remove redundant include in uploads"
Merge "Hygiene: Update editor documentation"