Revert "User defined wifi/usb tether network. [2/2]"

This reverts commit 48b5e81251049304fd01d6b277566e2a2edfef88.

Conflicts:
	res/values/bk_arrays.xml
	res/values/bk_strings.xml
Show devices connected to the WiFi hotspot(2/2)

Change-Id: Icf51db5ae0204ed2bf153a5223aec986d3b496c4

Conflicts:
	res/values/cm_strings.xml
	src/com/android/settings/Settings.java