remove: duplicated link - r/golang (#5602)

README.md

@@ -3674,7 +3674,6 @@ _Add the group of your city/country here (send **PR**)_
 - [Learn Go Programming](https://blog.learngoprogramming.com) - Learn Go concepts with illustrations.
 - [Made with Golang](https://madewithgolang.com/?ref=awesome-go)
 - [pkg.go.dev](https://pkg.go.dev/) - Documentation for open source Go packages.
-- [r/Golang](https://www.reddit.com/r/golang) - News about Go.
 - [studygolang](https://studygolang.com) - The community of studygolang in China.
 - [Trending Go repositories on GitHub today](https://github.com/trending?l=go) - Good place to find new Go libraries.
 - [TutorialEdge - Golang](https://tutorialedge.net/course/golang/)