message: Remove native transfer struct
diff: @@ -103,22 +103,6 @@ struct abi_def {
  vector<table_def> tables;
  };
  -struct transfer {
  - account_name from;
  - account_name to;
  - uint64 amount;
  - string memo;
  -
  - static account_name get_account() {
  - return config::system_account_name;
  - }
  -
  - static name get_name() {
  - return N(transfer);
  - }
  -};
  -
  -
  struct newaccount {
  account_name creator;
  account_name name;
  