Revert "Update custom_search 6.x-1.4 ==> 6.x-1.12"

This reverts commit 21a8dc58a9b556f2e0f29f2f0f188bf1f1ad4759.
Drupal 6.32
Disable the recursive check in hierarchical permissions

This causes a HUGE performance issue when there are
lots of courses/materials in the system.  It only
allows us to display who else has admin permissions
for the course.  It is not worth the performance
penalty.  Remove it until we can figure out a
better way.