There are no per-file copyright headers anymore

Author: oli-cosmian

Diff for: README.md

@@ -182,5 +182,5 @@ Copyright 2014-2019 The Rust Project Developers
 Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
 [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)> or the MIT license
 <LICENSE-MIT or [https://opensource.org/licenses/MIT](https://opensource.org/licenses/MIT)>, at your
-option. All files in the project carrying such notice may not be
+option. Files in the project may not be
 copied, modified, or distributed except according to those terms.