fix: remove not working badge

Author: fago

README.md

@@ -3,7 +3,6 @@
 [![npm version][npm-version-src]][npm-version-href]
 [![npm downloads][npm-downloads-src]][npm-downloads-href]
 [![ci](https://github.com/drunomics/nuxt-component-preview/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/drunomics/nuxt-component-preview/actions/workflows/ci.yml)
-[![codecov](https://codecov.io/gh/drunomics/nuxt-component-preview/branch/main/graph/badge.svg)](https://codecov.io/gh/drunomics/nuxt-component-preview)
 [![License][license-src]][license-href]
 [![Nuxt][nuxt-src]][nuxt-href]