Remove profiling hook from method_meta (#887)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/887

This hook causes issues in the post-profiling step as we try to consolidate the data across multiple runs. Removing it for now.

Reviewed By: cccclai

Differential Revision: D50250670

fbshipit-source-id: 87d903eaeee719050974bf09ca1cdb6528e82856