[JIT] remove callable check to compile objects with __call__ (#40041)
Summary:
Fix for https://github.com/pytorch/vision/issues/2320 - still need to fix whatever reverting this change breaks
EDIT: reverting this change doesnt seem to break anything, and fixes the torchvision issue
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40041
Reviewed By: eellison
Differential Revision: D22067586
Pulled By: fmassa
fbshipit-source-id: 4b235fd3a69665dcc5689f12310097be31b40a28
