remove warning for upsample code (#17921)
Summary:
IIRC we decided to remove warning in code in #11568. This got reverted accidentally in #14123.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17921
Differential Revision: D14422811
Pulled By: ailzhang
fbshipit-source-id: 7067264bd1d3e3b7861d29e18ade2969ed705ca1
