Disable settings search on all subactivities.

This leaves the search in place in multi-pane configurations, and keeps
it only in the main settings screen for single-pane configurations.

Change-Id: I2db74193d534b66e1faf20293996c611621dfe58
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Settings into android-4.4

Conflicts:
	src/com/android/settings/Settings.java