[pytorch] deprecate PYTORCH_DISABLE_TRACING macro (#41004)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/41004
Tracing has been moved into separate files. Now we can disable it by not compiling the source files for xplat mobile build.
ghstack-source-id: 107158627
Test Plan: CI + build size bot
Reviewed By: iseeyuan
Differential Revision: D22372615
fbshipit-source-id: bf2e2249e401295ff63020a292df119b188fb966
