Remove last name requirement in save user request

app/Http/Requests/SaveUserRequest.php

@@ -25,10 +25,10 @@ public function rules()
  {
  return [
  'first_name' => 'required|string|min:1',
- 'last_name' => 'required|string|min:1',
  'email' => 'email',
  'password' => 'required|min:6',
  'password_confirm' => 'sometimes|required_with:password',
+ 'username' => 'required|string|min:2|unique:users,username,NULL,deleted_at',
  ];
  }
 }