Merge pull request #725 from dtcristo/patch-1

Remove `raylib-rust`

CONTRIBUTING.md

@@ -71,7 +71,6 @@ Some people ported raylib to other languages in form of bindings or wrappers to
  - [RaylibSharp](https://github.com/TheLumaio/RaylibSharp) : raylib **C#** binding
  - [raylib-ruby-ffi](https://github.com/D3nX/raylib-ruby-ffi) : raylib **Ruby** binding
  - [raylib-rs](https://github.com/deltaphc/raylib-rs) : raylib **Rust** binding
- - [raylib-rust](https://github.com/dtcristo/raylib-rust) : raylib **Rust** binding
  - [raylib-py](https://github.com/overdev/raylib-py) : raylib **Python** binding
  - [raylib-haskell](https://github.com/DevJac/raylib-haskell) : raylib **Haskell** binding
  - [raylib-java](https://github.com/XoanaIO/raylib-java) : raylib **Java** binding