Allow DISABLE_ALL_APPS to be set using a system property.

 - Moving the property to LauncherAppState
 - The property is only read on dogfood builds.

The property can be set using setprop or /data/local.prop

Change-Id: I14c7354efb12edb93f97e81687a6f920cc634e9a
diff --git a/src/com/android/launcher3/DynamicGrid.java b/src/com/android/launcher3/DynamicGrid.java
index 22928cc..3aced1f 100644
--- a/src/com/android/launcher3/DynamicGrid.java
+++ b/src/com/android/launcher3/DynamicGrid.java
@@ -56,7 +56,7 @@
         DisplayMetrics dm = resources.getDisplayMetrics();
         ArrayList<DeviceProfile> deviceProfiles =
                 new ArrayList<DeviceProfile>();
-        boolean hasAA = !AppsCustomizePagedView.DISABLE_ALL_APPS;
+        boolean hasAA = !LauncherAppState.isDisableAllApps();
         DEFAULT_ICON_SIZE_PX = pxFromDp(DEFAULT_ICON_SIZE_DP, dm);
         // Our phone profiles include the bar sizes in each orientation
         deviceProfiles.add(new DeviceProfile("Super Short Stubby",