Merge changes from topic "revert-1668411-MWQWEZISXF"

* changes:
  Revert "Add a neverallow for debugfs mounting"
  Revert "Add neverallows for debugfs access"
  Revert "Exclude vendor_modprobe from debugfs neverallow restrictions"
  Revert "Check that tracefs files are labelled as tracefs_type"