Remove Slim heads up customizations [2/2]

Revert "Settings: add headsup manifest permission"

This reverts commit 89d019e4c99fbd9bd54435e69b7dfa728fd9f686.

Revert "Settings: : Slim heads up customizations for LP (2/2)"

This reverts commit fa9b3f61d49ac04da5e6c01df8937f1585518dc3.

Conflicts:
	res/values/strings.xml