Revert "Navigation Bar size scaling"

This reverts commit 2a4b4d80a906617196d2b69a6df17d2a688c6737.

Conflicts:
	res/values/cfx_arrays.xml
	res/values/cfx_strings.xml
	res/xml/system_ui_settings.xml
	src/com/android/settings/cyanogenmod/SystemUiSettings.java
[2/2] Navbar height