Centralize license and MSRV boilerplate into the repo readme.

embassy-net-adin1110/README.md

@@ -76,13 +76,3 @@ Summary:
   Size/request: 289 B
   Size/sec:     51.11 KiB
 ```
-
-## License
-
-This work is licensed under either of
-
-- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
-  http://www.apache.org/licenses/LICENSE-2.0)
-- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
-
-at your option.