use new depthwise conv fbgemm interface (#26898)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26898
This diff removes call sites using the old depth-wise conv fbgemm interface in Caffe2.
Test Plan: CI
Reviewed By: dskhudia
Differential Revision: D17515368
fbshipit-source-id: 7200cf12ddac1103402e690596c58f378f95b1e9
