Revert "Settings: Bringup expanded desktop and implement per-user configuration."

This reverts commit adf4ffa47e90313b6dee0b681cb94693c18d1ece.

	deleted:    res/drawable-mdpi/checkmark.png
	deleted:    res/drawable-xhdpi/checkmark.png
	deleted:    res/drawable/expanded_close_bg.xml
	deleted:    res/drawable/expanded_item_background.xml
	deleted:    res/drawable/fab.xml
	deleted:    res/layout/expanded_desktop.xml
	deleted:    res/layout/expanded_item.xml
	deleted:    res/menu/expanded_desktop.xml
	deleted:    res/menu/expanded_desktop_chooser.xml
	deleted:    res/values/cm_colors.xml
	modified:   res/values/cm_dimens.xml
	modified:   res/values/cm_strings.xml
	modified:   res/xml/display_settings.xml
	deleted:    src/com/android/settings/applications/ExpandedDesktopPreferenceFragment.java