Clean up warnings and some private API usage

Change-Id: Ic3c0b333942bc3de130e41531017e71358bd5bfb

src/com/android/launcher2/AppsCustomizeTabHost.java

@@ -58,8 +58,6 @@ public class AppsCustomizeTabHost extends TabHost implements LauncherTransitiona
     private boolean mResetAfterTransition;
     private Runnable mRelayoutAndMakeVisible;
 
-    private Launcher mLauncher;
-
     public AppsCustomizeTabHost(Context context, AttributeSet attrs) {
         super(context, attrs);
         mLayoutInflater = LayoutInflater.from(context);
@@ -71,10 +69,6 @@ public class AppsCustomizeTabHost extends TabHost implements LauncherTransitiona
             };
     }
 
-    public void setup(Launcher launcher) {
-        mLauncher = launcher;
-    }
-
     /**
      * Convenience methods to select specific tabs.  We want to set the content type immediately
      * in these cases, but we note that we still call setCurrentTabByTag() so that the tab view