Fix shade background not aligning with bottom of a group

The extra padding used to show the shadow at the bottom of a group
was wrongly being subtracted from the shade background causing a
misalignment with the bottom of the group and the shade background.

Change-Id: Ia138fcdcb5428605b59f5448ee125c6b3f3e0d93
Fixes: 29250090

packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java

@@ -1958,8 +1958,7 @@ public class NotificationStackScrollLayout extends ViewGroup
                 // we're ending up at the same location as we are now, lets just skip the animation
                 bottom = finalBottom;
             } else {
-                bottom = (int) (lastView.getTranslationY() + lastView.getActualHeight()
-                        - lastView.getExtraBottomPadding());
+                bottom = (int) (lastView.getTranslationY() + lastView.getActualHeight());
                 bottom = Math.min(bottom, getHeight());
             }
         } else {