Disable c10 dispatcher on mobile (#17078)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17078
This prevents caffe2 operators from being expsoed to c10 on mobile,
which in turn causes the whole c10 dispatcher to be stripped away
and saves binary size.
We probably want to re-enable the c10 dispatcher for mobile,
but for now this is ok.
Reviewed By: ezyang
Differential Revision: D14077972
fbshipit-source-id: e4dd3e3b60cdfbde91fe0d24102c1d9708d3e5c4
