Revert "sepolicy: Allow netd/hostapd sockets for tethering"

This reverts commit f36bac985f7789e4b7cfab6c795f873a0ff4b90e.

Only retain parts not added to vendor/cm

Change-Id: Ieeb5cc2da56bbdbe24400b54081ca178ea6c9ff8
Merge remote-tracking branch 'cm/cm-12.0' into HEAD