Revert "privapp-permissions: Whitelist CHANGE_OVERLAY_PACKAGES permission"

Permission no longer required because Styles handling was
removed from LineageParts. ThemePicker is our best friend now.

This reverts commit a7b0cf7ec39a2ea02fda0390ac3e66f536e990f8.

Change-Id: I003cd2281de9f7edbd81a15e0c1b1258e537ccb3
1 file changed