Merge changes I1e6caa54,I20317bdd,Ib1ae7a2a,Ie65a6027,I0d65cb9e, ... into main

* changes:
  Revert "Introduce per-user InputMethodSettings cache"
  Revert "Start using InputMethodSettingsRepository"
  Revert "Remove redundant call of queryInputMethodServicesInternal"
  Revert "Remove unnecessary query in IMMS#switchUserOnHandlerLocked()"
  Revert "Replace IMMS#mSettings with IMMS#mCurrentUserId"
  Revert "Dump IMMS#mCurrentUserId instead of IMMS#mSettings"