Revert "settings: add back notification shortcuts + slim classes we need"

This reverts commit 598d332c36d2c0f157ff3ffa6a18d8be57d32be8.

Conflicts:
	res/values/axxion_strings.xml
Live Volume Steps [2/2]

Change-Id: I8ba0a1ac7b6f55a174e685182afb06781448a6c2

Conflicts:
	res/values/axxion_arrays.xml
	res/values/cr_strings.xml