They were included by mistake due to removal of default-permissions.xml from device/google/zuma,
which made adevtool copy them from the stock OS image.
This mistake was harmless, since permission grants which are defined in default-permissions.xml
apply only to preinstalled packages.
This is needed to properly PixelCameraServices in the next commit, otherwise it would not be marked
as presigned, which would prevent it from running in its SELinux domain (vendor_pcs_app).
