chore: remove go dev badge from README

Signed-off-by: m.nabokikh <maksim.nabokikh@flant.com>

README.md

@@ -2,7 +2,6 @@
 
 ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/dexidp/dex/CI?style=flat-square)
 [![Go Report Card](https://goreportcard.com/badge/github.com/dexidp/dex?style=flat-square)](https://goreportcard.com/report/github.com/dexidp/dex)
-[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/mod/github.com/dexidp/dex)
 [![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod&style=flat-square)](https://gitpod.io/#https://github.com/dexidp/dex)
 
 ![logo](docs/logos/dex-horizontal-color.png)