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

This reverts commit f81151cd.

Reason for revert: collides with aosp/1137243 and breaks build

Change-Id: I6d0216ccaa1a759fb1732c07601f5877b81a5f03
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>