Get rid of explicit GC requests

Bug: 7370913

src/com/android/launcher2/AppsCustomizeTabHost.java

@@ -352,11 +352,6 @@ public class AppsCustomizeTabHost extends TabHost implements LauncherTransitiona
             // force building the layer, so you don't get a blip early in an animation
             // when the layer is created layer
             buildLayer();
-
-            // Let the GC system know that now is a good time to do any garbage
-            // collection; makes it less likely we'll get a GC during the all apps
-            // to workspace animation
-            System.gc();
         }
     }