Revert "Enable moving applications to an external volume"

This reverts commit e941100bb2881e6e37365892c09e7eaa742ea0ef.
Revert "Add app moving setting to the menu in Settings -> Apps"

This reverts commit 1478ec08ad2e3833221c6a2d9505e967a584a196.

Conflicts:
	res/values/slim_strings.xml

Change-Id: I72ac02687b790337060d67d3ea067619180b2c7b