Revert "Allow system apps to write paranoid properties"

This reverts commit 9e66e816ad21ef67ffc339c577dda719a20c6eac.
HYBRID: support writing to system

Change-Id: Ib6b3b5847d1c880b61a2c3d6b9aa0884c948de41
missing 0

Change-Id: I9ff7d80f6f0add0765284707a7096805131215c6