Revert "hevc/rext: add support for Range extension tools"

This reverts commit e598fc5b38ff20526fc3361837ff68a12b8a11b5.
Revert "hevc/rext: basic infrastructure for supporting range extension - support for 4:2:2 and 4:4:4 up to 12 bits - add a new profile for range extension"

This reverts commit ea1dbdb69337a8847ee9b66586e262c0a845bef3.
Revert "hevc: separate residu and prediction (needed for Range Extension)"

This reverts commit 88a956791b5789de6e464a530f74de59121608e6.
Revert "hevc: remove pic_size warning"

This reverts commit 87f77d52743524247aebe1155fc9a04fbee10c4c.
Revert "hevc: use local variable for split_cu_flag"

This reverts commit 1863859f9ca62c83728371b47350759d392da61c.
Revert "hevc: move restore_tqb where it should be. "

This reverts commit 9e8ec02c778b3ed1e4000f4a5f71b5414be7951d.
Revert "hevc/rext: fixing memory access in SA0"

This reverts commit 1fd2208c49294b4ad095c999a39ae3dcaf9ee772.
Revert "hevc: simplify SAO computation, delay from one row its computation"

This reverts commit d867d21b10f3ac17fde45371c91ea9ad690a8712.