Remove fallback attempt to set outerHtml when removing corrupt nodes, it won't work anyway

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 2b7006bd5a81f4be99f61e711e7acc6f9625cd41..e780d2e8a365a6510fb9196c8aaea17f44d9507b 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -13273,7 +13273,7 @@ abstract class Element extends Node implements GlobalEventHandlers, ParentNode,
 	     element.lastChild !== childNodes[childNodes.length -1]) {
 	   return true;
 	 }
-	 if (element.children) {
+	 if (element.children) { // On Safari, children can apparently be null.
   	   if (!((element.children instanceof HTMLCollection) ||
                (element.children instanceof NodeList))) {
 	     return true;
@@ -40822,11 +40822,7 @@ class _ValidatingTreeSanitizer implements NodeTreeSanitizer {
     if (parent == null) {
       node.remove();
     } else {
-      try {
-        parent._removeChild(node);
-      } catch (e) {
-        node.outerHtml = '';
-      }
+      parent._removeChild(node);
     }
   }