Don't force default groups on new admins, this is now handled by the user interface

modules/backend/models/User.php

@@ -96,8 +96,6 @@ class User extends UserBase
         if ($this->send_invite) {
             $this->sendInvitation();
         }
-
-        UserGroup::addUserToDefaultGroups($this);
     }
 
     public function sendInvitation()

modules/backend/models/UserGroup.php

@@ -40,10 +40,4 @@ class UserGroup extends GroupBase
     {
         $this->users()->sync(User::lists('id'));
     }
-
-    public static function addUserToDefaultGroups($user, $detaching = false)
-    {
-        $user->groups()->sync(self::where('is_new_user_default', true)->lists('id'), $detaching);
-    }
-
 }