Bug 1488218 - Remove one more unneeded keyword in dom/media/webaudio. r=karlt

Differential Revision: https://phabricator.services.mozilla.com/D4866

--HG--
extra : rebase_source : 8790e201432d6f2030ef0f4ff4eee24054ce09ec

dom/media/webaudio/AudioParamTimeline.h

@@ -53,7 +53,7 @@ public:
   void InsertEvent(const AudioTimelineEvent& aEvent)
   {
     if (aEvent.mType == AudioTimelineEvent::Cancel) {
-      CancelScheduledValues(aEvent.template Time<TimeType>());
+      CancelScheduledValues(aEvent.Time<TimeType>());
       return;
     }
     if (aEvent.mType == AudioTimelineEvent::Stream) {