Revert "hevc/rext: fix pic_size_A"

This reverts commit 88e8ec2ba36e73174b15d8635f9517b91224f4d4.
Revert "hevc/rext: remove warning for cross component prediction"

This reverts commit a9afaf8e54b0de96d55a2601afad1797035055dd.
Revert "hevc/rext: fixing rdpcm and scaling list for Range Extension"

This reverts commit 8fa32ff73114db9595ffcc6443b4f77d33c6426d.
Revert "hevc/rext: update boundary strength for chroma deblocking filter"

This reverts commit a5c21216cf3f8954df429d078e111767bb961a9d.