Revert "[2/2] Settings: Add an option to reset custom user preferences"

This reverts commit b99b0fcd32ca3d9bd9327b2dbae17a00fa8a72ee.
Settings: fix Display settings FC on manta or devices without crt mode effect

we removed the animations category for devices without crt mode effects. Result
is the ListviewAnimation get now NPE on this devices due that they are in same category.

Fix it with just not removing the category due that ListviewAnimations are always present
and remove only the CRT mode option

Change-Id: Iaf88e1c5a729a0fb3b7692b0b83b88c58dd1ee93