Fix large clock flickers when animated in Felix

Test: Manual
Bug: 292063872
Change-Id: I036f3a5ad60faf2525fcc231c6295a3854b19b85
(cherry picked from commit 67e010a855)

packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitch.java

@@ -327,7 +327,6 @@ public class KeyguardClockSwitch extends RelativeLayout {
             }
         });
 
-        in.setAlpha(0);
         in.setVisibility(View.VISIBLE);
         mClockInAnim = new AnimatorSet();
         mClockInAnim.setDuration(CLOCK_IN_MILLIS);