Revert "Dartium w/ JsInterop enabled"

tools/dom/templates/html/impl/impl_HTMLAudioElement.darttemplate

Index: tools/dom/templates/html/impl/impl_HTMLAudioElement.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_HTMLAudioElement.darttemplate b/tools/dom/templates/html/impl/impl_HTMLAudioElement.darttemplate
deleted file mode 100644
index 838a8be40bfdccc158b523a8130f1c5d022365a9..0000000000000000000000000000000000000000
--- a/tools/dom/templates/html/impl/impl_HTMLAudioElement.darttemplate
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of $LIBRARYNAME;
-
-@DocsEditable()
-$(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
-$!MEMBERS
-$if JSINTEROP
-  factory AudioElement([String src]) {
-    if (src == null)
-      return wrap_jso(_blink.BlinkHTMLAudioElement.instance.constructorCallback_0_());
-    else
-      return wrap_jso(_blink.BlinkHTMLAudioElement.instance.constructorCallback_1_(src));
-  }
-$else
-  factory AudioElement([String src]) => new AudioElement._(src);
-$endif
-}