message: moved macro to core
diff: @@ -260,22 +260,6 @@ where
  }
  }
  -macro_rules! check_param {
  - ($param:expr, $msg:expr, $error:ident) => {
  - match $param {
  - None => {
  - return Err(ArgminError::$error {
  - text: $msg.to_string(),
  - }.into());
  - }
  - Some(ref x) => x.clone(),
  - }
  - };
  - ($param:expr, $msg:expr) => {
  - check_param!($param, $msg, NotInitialized);
  - };
  -}
  -
  impl<T> ArgminNextIter for MoreThuenteLineSearch<T>
  where
  T: std::default::Default
  