Revert "CM11 Themes: Allow defining a custom default theme [1/3]"

This reverts commit c65b0e61fb222e8ae1002f0af13ee110a1bb9b52.

Conflicts:
	core/java/android/provider/Settings.java
	packages/SettingsProvider/res/values/defaults.xml
	services/java/com/android/server/ThemeService.java