bindings: Retires ScriptWrappable::init, etc.

Source/modules/webmidi/MIDIConnectionEvent.cpp

Index: Source/modules/webmidi/MIDIConnectionEvent.cpp
diff --git a/Source/modules/webmidi/MIDIConnectionEvent.cpp b/Source/modules/webmidi/MIDIConnectionEvent.cpp
index c00f7e801e26a765054900effa8a7c0286ae0a5a..9cb8163a4abca6f300431cdedb71f0c8d4684432 100644
--- a/Source/modules/webmidi/MIDIConnectionEvent.cpp
+++ b/Source/modules/webmidi/MIDIConnectionEvent.cpp
@@ -35,21 +35,18 @@ namespace blink {
 
 MIDIConnectionEvent::MIDIConnectionEvent()
 {
-    ScriptWrappable::init(this);
 }
 
 MIDIConnectionEvent::MIDIConnectionEvent(const AtomicString& type, MIDIPort* port)
     : Event(type, false, false)
     , m_port(port)
 {
-    ScriptWrappable::init(this);
 }
 
 MIDIConnectionEvent::MIDIConnectionEvent(const AtomicString& type, const MIDIConnectionEventInit& initializer)
     : Event(type, initializer)
     , m_port(initializer.port)
 {
-    ScriptWrappable::init(this);
 }
 
 PassRefPtrWillBeRawPtr<MIDIConnectionEvent> MIDIConnectionEvent::create()