Revert "hevc/rext: update boundary strength for chroma deblocking filter"

This reverts commit f41141338448af6d63ef877209fade1a1f444c59.
hevc/rext: update boundary strength for chroma deblocking filter
Revert "hevc/rext: fixing rdpcm and scaling list for Range Extension"

This reverts commit 18e74c92ef3d665838f4145766914182241e68a0.