Fix keychain

Author: beauby

src/plugins/keychain.js

@@ -3,31 +3,30 @@
 
 angular.module('ngCordova.plugins.keychain', [])
 
-  .factory('$cordovaKeychain', ['$q', '$window', function ($q, $window) {
-
-    if ('Keychain' in $window) {
-      var kc = new Keychain();
-    }
+  .factory('$cordovaKeychain', ['$q', function ($q) {
 
     return {
       getForKey: function (key, serviceName) {
-        var defer = $q.defer();
+        var defer = $q.defer(),
+            kc = new Keychain();
 
         kc.getForKey(defer.resolve, defer.reject, key, serviceName);
 
         return defer.promise;
       },
 
       setForKey: function (key, serviceName, value) {
-        var defer = $q.defer();
+        var defer = $q.defer(),
+            kc = new Keychain();
 
         kc.setForKey(defer.resolve, defer.reject, key, serviceName, value);
 
         return defer.promise;
       },
 
       removeForKey: function (key, serviceName) {
-        var defer = $q.defer();
+        var defer = $q.defer(),
+            kc = new Keychain();
 
         kc.removeForKey(defer.resolve, defer.reject, key, serviceName);