[Feature flag] Cleanup by_pass_two_factor_for_current_session

Smriti Gargrequested to merge
smriti-416535/remove_feature_flag_by_pass_two_factor_for_current_session into master

What does this MR do and why?

Solves #416535 (closed)

Removed feature flag by_pass_two_factor_for_current_session

This feature flag is active in production for over a release now and we can safely delete this one

Changelog: removed

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