Revert "strip_useless_const_qualification: leave const void alone" am: 51c86db89d

Original change: https://android-review.googlesource.com/c/platform/external/libabigail/+/2446225

Change-Id: I50480d2d967ec1b906fd43d7d8d7be51ec3c11d8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>