Merge "Remove mips specific files" am: 2fdbb0d883 am: 4c05e7607f

Original change: https://android-review.googlesource.com/c/platform/external/libmpeg2/+/2329513

Change-Id: Id938e3a734a8d933d27bc9fb401ee6fe4ca26124
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>