Revert "Enable moving applications to an external volume"

This reverts commit a856f01e4660f66168d158805a960d1602a56b02.
Revert "Add app moving setting to the menu in Settings -> Apps"

This reverts commit 7270563e7cc8f549f5d321ca09d3ffc4bf04a00a.

Conflicts:
	res/values/cr_strings.xml