Temporarily disable test_numerical_consistency_per_channel due to failure (#28807)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/28807
`FAIL: test_numerical_consistency_per_channel (_main_.TestFakeQuantizePerChannel)`
This test is failing consistently on master, we can't find a clean blame.
ghstack-source-id: 92763176
Test Plan: CI
Differential Revision: D18181496
fbshipit-source-id: 5948af06c4cb7dea9a8db1366deb7c12f6ec1c72
