Move batch size to a resource.

This way we can figure out how many apps to send to the grid
at a time even if the grid hasn't been instantiated yet.

Bug: 2599979
Change-Id: I7960fe1adae6976555334422335f3a4b28d0675e

src/com/android/launcher2/AllApps3D.java

@@ -73,8 +73,6 @@ public class AllApps3D extends RSSurfaceView
     private static final int SELECTION_ICONS = 1;
     private static final int SELECTION_HOME = 2;
 
-    private static final int BATCH_SIZE = 0; // give us all the apps at once
-
     private Launcher mLauncher;
     private DragController mDragController;
 
@@ -1600,10 +1598,6 @@ public class AllApps3D extends RSSurfaceView
         }
     }
 
-    public int getAppBatchSize() {
-        return BATCH_SIZE;
-    }
-
     public void dumpState() {
         Log.d(TAG, "sRS=" + sRS);
         Log.d(TAG, "sRollo=" + sRollo);