Reorganize mdv and observe packages

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

Index: tools/dom/templates/html/impl/impl_Text.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_Text.darttemplate b/tools/dom/templates/html/impl/impl_Text.darttemplate
index 2675d8bc677850f05ed3f789fefee30f3a9eac9b..45fb72108f8599c34c9b70626d4271204d0840e4 100644
--- a/tools/dom/templates/html/impl/impl_Text.darttemplate
+++ b/tools/dom/templates/html/impl/impl_Text.darttemplate
@@ -9,42 +9,4 @@ part of $LIBRARYNAME;
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
   factory $CLASSNAME(String data) => document.$dom_createTextNode(data);
 $!MEMBERS
-
-$if DART2JS
-  @Creates('Null')  // Set from Dart code; does not instantiate a native type.
-$endif
-  StreamSubscription _textBinding;
-
-  @Experimental
-  void bind(String name, model, String path) {
-    if (name != 'text') {
-      super.bind(name, model, path);
-      return;
-    }
-
-    unbind('text');
-
-    _textBinding = new PathObserver(model, path).bindSync((value) {
-      text = value == null ? '' : '$value';
-    });
-  }
-
-  @Experimental
-  void unbind(String name) {
-    if (name != 'text') {
-      super.unbind(name);
-      return;
-    }
-
-    if (_textBinding == null) return;
-
-    _textBinding.cancel();
-    _textBinding = null;
-  }
-
-  @Experimental
-  void unbindAll() {
-    unbind('text');
-    super.unbindAll();
-  }
 }