Fix API user registration role

Author: bobbyiliev

wave/src/Http/Controllers/API/AuthController.php

@@ -117,7 +117,6 @@ public function register(Request $request)
             'email' => $request->email,
             'username' => $request->username,
             'password' => bcrypt($request->password),
-            'role_id' => $role->id,
         ]);
 
         $credentials = ['email' => $request['email'], 'password' => $request['password']];