Remove onClockVisibilityChanged callback from KUMCallback

This callback is never invoked except once while the callback is
being registered.

Bug: 238187419
Test: atest KeyguardUpdateMonitorTest passes
Test: atest KeyguardViewMediatorTest passes
Change-Id: Ib349ea061728860cc43782db21df03d8e698e363
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
index 584beae..f5456d2 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -3347,7 +3347,6 @@
         callback.onTimeChanged();
         callback.onPhoneStateChanged(mPhoneState);
         callback.onRefreshCarrierInfo();
-        callback.onClockVisibilityChanged();
         callback.onKeyguardVisibilityChangedRaw(mKeyguardIsVisible);
         callback.onTelephonyCapable(mTelephonyCapable);
 
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitorCallback.java b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitorCallback.java
index d420abd..85c7511 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitorCallback.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitorCallback.java
@@ -111,12 +111,6 @@
     public void onKeyguardDismissAnimationFinished() { }
 
     /**
-     * Called when visibility of lockscreen clock changes, such as when
-     * obscured by a widget.
-     */
-    public void onClockVisibilityChanged() { }
-
-    /**
      * Called when the device becomes provisioned
      */
     public void onDeviceProvisioned() { }
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
index 5b90ed8..71c4fc6 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
@@ -556,11 +556,6 @@
         }
 
         @Override
-        public void onClockVisibilityChanged() {
-            adjustStatusBarLocked();
-        }
-
-        @Override
         public void onDeviceProvisioned() {
             sendUserPresentBroadcast();
             synchronized (KeyguardViewMediator.this) {
@@ -1193,6 +1188,7 @@
             mSystemReady = true;
             doKeyguardLocked(null);
             mUpdateMonitor.registerCallback(mUpdateCallback);
+            adjustStatusBarLocked();
             mDreamOverlayStateController.addCallback(mDreamOverlayStateCallback);
         }
         // Most services aren't available until the system reaches the ready state, so we