Remove TODO which is resolved by changes in ZenModeHelper

Bug: 326061620
Test: N/A
Change-Id: Ibbf025341c8c1705253accccc5a07b568de6f34a

src/com/android/settings/notification/modes/ZenModesBackend.java

@@ -141,7 +141,7 @@ class ZenModesBackend {
 
     void deactivateMode(ZenMode mode) {
         if (mode.isManualDnd()) {
-            // TODO: b/326061620 - This shouldn't snooze any rules that are active.
+            // When calling with fromUser=true this will not snooze other modes.
             mNotificationManager.setZenMode(Settings.Global.ZEN_MODE_OFF, null, TAG,
                     /* fromUser= */ true);
         } else {