(js) Minor JavaScript code cleanup

UI/WebServerResources/js/Common/sgAvatarImage.directive.js

@@ -12,8 +12,7 @@
    * @example:
      <sg-avatar-image sg-email="test@email.com" size="50">person</sg-avatar-image>
   */
-  sgAvatarImage.$inject = ['$parse'];
-  function sgAvatarImage($parse) {
+  function sgAvatarImage() {
     return {
       restrict: 'AE',
       scope: {},

UI/WebServerResources/js/Common/sgDraggable.directive.js

@@ -89,8 +89,6 @@
 
         // Start dragging on mousedown
         onDragDetect: function(ev) {
-          var dragMode, pointerHandler;
-
           ev.stopPropagation();
 
           if (!this.dragStart || this.dragStart(scope)) {

UI/WebServerResources/js/Contacts/AddressBooksController.js

@@ -88,7 +88,7 @@
     function edit(folder) {
       if (!folder.isRemote) {
         vm.editMode = folder.id;
-        vm.originalAddressbook = angular.extend({}, folder.$omit());
+        vm.originalAddressbook = folder.$omit();
         focus('addressBookName_' + folder.id);
       }
     }