diff --git a/modules/angular2/src/render/dom/view/proto_view_builder.ts b/modules/angular2/src/render/dom/view/proto_view_builder.ts
index 2462ea42be..a867e1f862 100644
--- a/modules/angular2/src/render/dom/view/proto_view_builder.ts
+++ b/modules/angular2/src/render/dom/view/proto_view_builder.ts
@@ -149,7 +149,6 @@ export class ElementBinderBuilder {
   nestedProtoView: ProtoViewBuilder = null;
   propertyBindings: Map<string, ASTWithSource> = new Map();
   variableBindings: Map<string, string> = new Map();
-  propertyBindingsToDirectives: Set<string> = new Set();
   eventBindings: List<api.EventBinding> = [];
   eventBuilder: EventBuilder = new EventBuilder();
   textBindings: Map<Node, ASTWithSource> = new Map();
@@ -191,12 +190,6 @@ export class ElementBinderBuilder {
     this.propertyBindings.set(name, expression);
   }
 
-  bindPropertyToDirective(name: string) {
-    // we are filling in a set of property names that are bound to a property
-    // of at least one directive. This allows us to report "dangling" bindings.
-    this.propertyBindingsToDirectives.add(name);
-  }
-
   bindVariable(name: string, value: string) {
     // When current is a view root, the variable bindings are set to the *nested* proto view.
     // The root view conceptually signifies a new "block scope" (the nested view), to which