Automerge: Revert "[CI] Make email check workflow fail when author's email is private in Github UI" (#149186)

Reverts llvm/llvm-project#148694

The workflow is failing if user's email is not listed publicly on your
GH profile. This is different from not having your email public on
Github (in Github email settings page vs. email field in Github
profile/email settings).

Author: uditagarwal97