Remove the TextTrackCue constructor

Source/core/frame/UseCounter.cpp

Index: Source/core/frame/UseCounter.cpp
diff --git a/Source/core/frame/UseCounter.cpp b/Source/core/frame/UseCounter.cpp
index c87393d31a2d76289c742855be00163accd66e10..f8d9a2a3700008b8a14ed8306fe0087ebba0725a 100644
--- a/Source/core/frame/UseCounter.cpp
+++ b/Source/core/frame/UseCounter.cpp
@@ -661,9 +661,6 @@ String UseCounter::deprecationMessage(Feature feature)
     case SVGElementGetPresentationAttribute:
         return "CSSValue and SVGElement.getPresentationAttribute are deprecated. Please use getPropertyValue and parse the return value instead.";
 
-    case TextTrackCueConstructor:
-        return "The 'TextTrackCue' constructor is deprecated. Please use 'VTTCue' instead.";
-
     case PrefixedMediaSourceOpen:
         return "'WebKitMediaSource' is deprecated. Please use 'MediaSource' instead.";