Settings: Remove "Make pattern visible" regardless.

  - Previous logic depended on all pattern lock elements to be
    null prior to removing the preferences. Remove them one by
    one if they exist now.

  - PS #3: Add braces.

Change-Id: If34bc305eddda2985b37bd55349e4bb5d9b63154

Conflicts:
	src/com/android/settings/SecuritySettings.java
Settings: Allow access for external apps to launch ThemeSettings Fragment directly

Change-Id: I93b676d3eb570c7064eeb4217c8e420a186c8e32

Conflicts:

	src/com/android/settings/Settings.java

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