Revert "ANDROID: Sched: Add restricted vendor hooks for scheduler"

This reverts commit 6f8adeb7 as it
causes a lot of merge conflicts in the 6.1-rc1 scheduler merge.  If this
is still needed, it can be brought back after 6.1-rc1 is merged.

Bug: 200103201
Bug: 243793188
Cc: Ashay Jaiswal <quic_ashayj@quicinc.com>
Cc: Sai Harshini Nimmala <quic_snimmala@quicinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I11391151c662920771bb8d4d605bfef728a7a6e8