Bug 1696819. Disable generating a profile from the EDID data. r=aosmond

This code doesn't seem to be working correctly and was broken
accidentally before. Intentionally break it for now to avoid the
regression.

Differential Revision: https://phabricator.services.mozilla.com/D110347

gfx/thebes/gfxPlatformGtk.cpp

@@ -560,7 +560,9 @@ nsTArray<uint8_t> gfxPlatformGtk::GetPlatformCMSOutputProfileData() {
   result.AppendElements(static_cast<uint8_t*>(mem), size);
   free(mem);
 
-  return result;
+  // XXX: It seems like we get wrong colors when using this constructed profile:
+  // See bug 1696819. For now just forget that we made it.
+  return nsTArray<uint8_t>();
 }
 
 #else  // defined(MOZ_X11)