[native] Remove logout / delete account / identity login logic from specific reducers

Summary:
issue: ENG-6424
localSettings is the only native specific field that we clear in resetUserSpecificStateOnIdentityActions.

Test Plan: Tested that localSettings is still cleared on logout success

Reviewers: michal, kamil, ginsu

Reviewed By: ginsu

Subscribers: ashoat, tomek

Differential Revision: https://phab.comm.dev/D10870