Merge "Revert "Add soong config variables for selinux_policy_system in ...""...

Merge "Revert "Add soong config variables for selinux_policy_system in ..."" into main am: b4fc9b9e am: d5882269

Original change: https://android-review.googlesource.com/c/platform/build/+/3295415



Change-Id: Ibd10e883e19a24bd2c4af4e284b00f54a48ddaee
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>