Remove addLast from List.

sdk/lib/_internal/compiler/implementation/lib/js_array.dart

Index: sdk/lib/_internal/compiler/implementation/lib/js_array.dart
diff --git a/sdk/lib/_internal/compiler/implementation/lib/js_array.dart b/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
index ef4aecd7507dc3030b60902acc1dd80154c32b0b..4dbb285eafbbe5b158d68816c2aaead49ac7fe56 100644
--- a/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
+++ b/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
@@ -84,11 +84,6 @@ class JSArray<E> extends Interceptor implements List<E>, JSIndexable {
     }
   }
 
-  void addLast(E value) {
-    checkGrowable(this, 'addLast');
-    JS('void', r'#.push(#)', this, value);
-  }
-
   void clear() {
     length = 0;
   }