bindings: Retires ScriptWrappable::init, etc.

Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp

Index: Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp
diff --git a/Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp b/Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp
index 3d6ceb5fc984073850e5a26c78e295cb087c1319..af804f1a4d990e428bbf3632399a1818b89d6bd4 100644
--- a/Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp
+++ b/Source/modules/mediastream/RTCDTMFToneChangeEvent.cpp
@@ -46,21 +46,18 @@ PassRefPtrWillBeRawPtr<RTCDTMFToneChangeEvent> RTCDTMFToneChangeEvent::create(co
 
 RTCDTMFToneChangeEvent::RTCDTMFToneChangeEvent()
 {
-    ScriptWrappable::init(this);
 }
 
 RTCDTMFToneChangeEvent::RTCDTMFToneChangeEvent(const String& tone)
     : Event(EventTypeNames::tonechange, false, false)
     , m_tone(tone)
 {
-    ScriptWrappable::init(this);
 }
 
 RTCDTMFToneChangeEvent::RTCDTMFToneChangeEvent(const RTCDTMFToneChangeEventInit& initializer)
     : Event(EventTypeNames::tonechange, initializer)
     , m_tone(initializer.tone)
 {
-    ScriptWrappable::init(this);
 }
 
 RTCDTMFToneChangeEvent::~RTCDTMFToneChangeEvent()