Cleaning up tooltip for AccessibilityQuickSettingsPrimarySwitchPreferenceController

Cleaning up QS tile tooltip in the Settings page in onDestroy to avoid
leaking the window.

Bug: 279547549
Test: manually check only one tooltip exists
Change-Id: I13e94ce549e19fd54c9034f3b3372ecf40388e39

src/com/android/settings/accessibility/AccessibilityQuickSettingsPrimarySwitchPreferenceController.java

@@ -66,6 +66,10 @@ public abstract class AccessibilityQuickSettingsPrimarySwitchPreferenceControlle
     @Override
     public void onDestroy() {
         mHandler.removeCallbacksAndMessages(null);
+        final boolean isTooltipWindowShowing = mTooltipWindow != null && mTooltipWindow.isShowing();
+        if (isTooltipWindowShowing) {
+            mTooltipWindow.dismiss();
+        }
     }
 
     @Override