Revert "BACKPORT: perf_event: Add support for LSM and SELinux checks"

This reverts commit 8af21ac1 as it
breaks the build :(

Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Ryan Savitski <rsavitski@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>