Remove usage of the enableBubbleBarInPersistentTaskBar flag.

Remove and merge the usage of the enableBubbleBarInPersistentTaskBar
flag to the enableBubbleBar flag.

Bug: 383181643
Flag: com.android.wm.shell.enable_bubble_bar
Test: NONE - removed and merged flag usage.
Change-Id: I4f131e1ddf8367425b91c8fb597857ee222b75d8

quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java

@@ -90,7 +90,6 @@ import com.android.launcher3.util.MultiTranslateDelegate;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.quickstep.util.GroupTask;
 import com.android.systemui.shared.recents.model.Task;
-import com.android.wm.shell.Flags;
 import com.android.wm.shell.shared.bubbles.BubbleBarLocation;
 
 import java.io.PrintWriter;
@@ -303,8 +302,7 @@ public class TaskbarViewController implements TaskbarControllers.LoggableTaskbar
 
     /** Returns whether taskbar should be moved on the bubble bar location update. */
     private boolean shouldMoveTaskbarOnBubbleBarLocationUpdate() {
-        return Flags.enableBubbleBarInPersistentTaskBar()
-                && mControllers.bubbleControllers.isPresent()
+        return mControllers.bubbleControllers.isPresent()
                 && mActivity.shouldStartAlignTaskbar()
                 && mActivity.isThreeButtonNav();
     }