Merge changes from topic "revert-1738738-LHXSQXGGCL"

* changes:
  Revert "Canonicalize include pathnames"
  Revert "test: Fix net_test_osi"
  Revert "Add test/mock_btif_bluetooth"
  Revert "Re-point stack tests to use centralized test/mock"
  Revert "Remove unused mocks"
  Revert "Update test/mock_stack_acl"
  Revert "Make stack_smp_test host runnable"