Revert "First rev of Safe DOM"

pkg/mdv/test/custom_element_bindings_test.dart

Index: pkg/mdv/test/custom_element_bindings_test.dart
diff --git a/pkg/mdv/test/custom_element_bindings_test.dart b/pkg/mdv/test/custom_element_bindings_test.dart
index 0c277bd1b5cc44afb1bc2593ca8f0cb6dfa6f30d..882bf16940841cb00aed6afe40c26dc6c4617117 100644
--- a/pkg/mdv/test/custom_element_bindings_test.dart
+++ b/pkg/mdv/test/custom_element_bindings_test.dart
@@ -32,7 +32,7 @@ customElementBindingsTest() {
 
   createTestHtml(s) {
     var div = new DivElement();
-    div.setInnerHtml(s, treeSanitizer: new NullTreeSanitizer());
+    div.innerHtml = s;
     testDiv.append(div);
 
     for (var node in div.queryAll('*')) {
@@ -273,10 +273,3 @@ class AttributeMapWrapper<K, V> implements Map<K, V> {
   bool get isEmpty => _map.isEmpty;
   bool get isNotEmpty => _map.isNotEmpty;
 }
-
-/**
- * Sanitizer which does nothing.
- */
-class NullTreeSanitizer implements NodeTreeSanitizer {
-  void sanitizeTree(Node node) {}
-}