Default to not build Caffe2 operators on Windows. (#29061)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29061
It looks like we are too close to the maximum library size on
Windows. Kill Caffe2 operators to get us lower again.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Reviewed By: smessmer
Differential Revision: D18281083
Pulled By: ezyang
fbshipit-source-id: 8a11f9059dbf330f659bd96cc0cc2abc947723a8
