chore: remove left over injector

Author: mhevery

lib/directive/ng_include.dart

@@ -23,15 +23,14 @@ class NgInclude {
   final dom.Element element;
   final Scope scope;
   final ViewCache viewCache;
-  final Injector appInjector;
   final DirectiveInjector directiveInjector;
   final DirectiveMap directives;
 
   View _view;
   Scope _scope;
 
   NgInclude(this.element, this.scope, this.viewCache,
-            this.directiveInjector, this.appInjector, this.directives);
+            this.directiveInjector, this.directives);
 
   _cleanUp() {
     if (_view == null) return;