Remove redundant call to closeMediaSource() in userCancelledLoad()

Source/core/html/HTMLMediaElement.cpp

Index: Source/core/html/HTMLMediaElement.cpp
diff --git a/Source/core/html/HTMLMediaElement.cpp b/Source/core/html/HTMLMediaElement.cpp
index 47e62a65b6ab2a764e5c27369bedde49c86df3c5..3704d2200778bf508a988dc8dc62cfd73b1f4afc 100644
--- a/Source/core/html/HTMLMediaElement.cpp
+++ b/Source/core/html/HTMLMediaElement.cpp
@@ -3043,8 +3043,6 @@ void HTMLMediaElement::userCancelledLoad()
     // 3 - Queue a task to fire a simple event named error at the media element.
     scheduleEvent(EventTypeNames::abort);
 
-    closeMediaSource();
-
     // 4 - If the media element's readyState attribute has a value equal to HAVE_NOTHING, set the
     // element's networkState attribute to the NETWORK_EMPTY value and queue a task to fire a
     // simple event named emptied at the element. Otherwise, set the element's networkState