Remove appveyor badge

README.md

@@ -3,7 +3,6 @@ nheko
 
 [![#nheko-reborn:matrix.org](https://img.shields.io/matrix/nheko-reborn:matrix.org.svg?label=%23nheko-reborn:matrix.org)](https://matrix.to/#/#nheko-reborn:matrix.org)
 [![Build Status](https://nheko.im/nheko-reborn/nheko/badges/master/pipeline.svg)](https://nheko.im/nheko-reborn/nheko/-/pipelines/latest)
-[![Build status](https://ci.appveyor.com/api/projects/status/07qrqbfylsg4hw2h/branch/master?svg=true)](https://ci.appveyor.com/project/redsky17/nheko/branch/master)
 
 The motivation behind the project is to provide a native desktop app for [Matrix] that
 feels more like a mainstream chat app ([Element], Telegram etc) and less like an IRC client.