remove duplicate version

Author: selfmadecode

ReadMe.md

@@ -4,7 +4,6 @@
 [![NuGet Downloads](https://img.shields.io/nuget/dt/RateLimit.Throttlr.svg?style=flat&logo=nuget)](https://www.nuget.org/packages/RateLimit.Throttlr)
 [![License](https://img.shields.io/github/license/selfmadecode/Throttlr.Api.RateLimit.svg?style=flat)](LICENSE)
 [![Build](https://img.shields.io/github/actions/workflow/status/selfmadecode/Throttlr.Api.RateLimit/build.yml?branch=main&style=flat&logo=github)](https://github.com/selfmadecode/Throttlr.Api.RateLimit/actions)
-[![NuGet](https://img.shields.io/nuget/v/RateLimit.Throttlr.svg?style=flat&logo=nuget)](https://www.nuget.org/packages/RateLimit.Throttlr)
 
 A flexible and customizable **rate limiting library** for modern and legacy **.NET APIs**.