... and remove redundant Makefile codes. This also updates commit hook
as we now only use Soong to build sepolicy.
Bug: 296875906
Test: m selinux_policy
Change-Id: I93f0d222a0c10e31c51c9380780a8927c47d62b1
Init needs to be aware of the policy version defined in sepolicy
for on-device compilation.
Bug: 124499219
Test: build and boot a device. Try both precompiled and on-device
compiled policy.
Change-Id: Iba861aeb4566405aedcbe3c2bad48e1e50126370