Remove obsolete lock screen UI

Removes obsolete KeyguardSliceView title area and adds doze callbacks
necessary to support new lock screen design.

Bug: 111405682
Test: manual
Test: atest KeyguardSliceViewTest
Change-Id: I07e96dbde68d4e5e38e1371526bedf59fc925b86
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeReceiver.java b/packages/SystemUI/src/com/android/systemui/doze/DozeReceiver.java
index dcb3882..30dfd36 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeReceiver.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeReceiver.java
@@ -20,5 +20,19 @@
  * Interface for class that cares about doze states.
  */
 public interface DozeReceiver {
+
+    /**
+     * If device enters or leaves doze mode
+     */
     void setDozing(boolean dozing);
+
+    /**
+     * Invoked every time a minute is elapsed in doze mode
+     */
+    void dozeTimeTick();
+
+    /**
+     * When view is double tapped in doze mode.
+     */
+    void onDozeDoubleTap();
 }