refactor(ngAria): remove usused dependency

(As mentioned in d06431e#commitcomment-15871053.)

Author: gkalpak

src/ngAria/aria.js

@@ -212,7 +212,7 @@ ngAriaModule.directive('ngShow', ['$aria', function($aria) {
 .directive('ngRequired', ['$aria', function($aria) {
   return $aria.$$watchExpr('ngRequired', 'aria-required', nodeBlackList, false);
 }])
-.directive('ngModel', ['$aria', '$parse', function($aria, $parse) {
+.directive('ngModel', ['$aria', function($aria) {
 
   function shouldAttachAttr(attr, normalizedAttr, elem, allowBlacklistEls) {
     return $aria.config(normalizedAttr) && !elem.attr(attr) && (allowBlacklistEls || !isNodeOneOf(elem, nodeBlackList));