Remove messed up bridges subtree

polkadot/bridges/bin/rialto/node/build.rs

@@ -1,25 +0,0 @@
-// Copyright 2019-2020 Parity Technologies (UK) Ltd.
-// This file is part of Parity Bridges Common.
-
-// Parity Bridges Common is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// Parity Bridges Common is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License
-// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
-
-use vergen::{generate_cargo_keys, ConstantsFlags};
-
-const ERROR_MSG: &str = "Failed to generate metadata files";
-
-fn main() {
-	generate_cargo_keys(ConstantsFlags::SHA_SHORT).expect(ERROR_MSG);
-
-	build_script_utils::rerun_if_git_head_changed();
-}