Removing ViewScrim and cutom drawing code

Bug: 109828640
Change-Id: I2cab0215a32c2ca6bc331d48083fcc00ada05c3b

src/com/android/launcher3/InsettableFrameLayout.java

@@ -68,7 +68,7 @@ public class InsettableFrameLayout extends FrameLayout implements Insettable {
     }
 
     public static class LayoutParams extends FrameLayout.LayoutParams {
-        boolean ignoreInsets = false;
+        public boolean ignoreInsets = false;
 
         public LayoutParams(Context c, AttributeSet attrs) {
             super(c, attrs);