abitidy: add functionality to remove top-level qualifiers on function parameter and return types am: 3888a5b0fd

Original change: https://android-review.googlesource.com/c/platform/external/libabigail/+/2162198

Change-Id: I1864fe0a02803447071bed412e437100a216da31
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>