Merge changes from topic "revert-10501254-multihal_2_1-FNHFKNQMKB" into rvc-dev

* changes:
  Revert "Set up Multi-HAL for Sensors HAL 2.1"
  Revert "Create Multi-HAL 2.1 service"
  Revert "Update tests for multihal to test HAL 2.1"