#153: Remove requires.io badge as this system not exists anymore

readme.md

@@ -5,7 +5,6 @@
 [![Hits-of-Code](https://hitsofcode.com/github/dgroup/arch4u-pmd)](https://hitsofcode.com/view/github/dgroup/arch4u-pmd)
 
 [![CI](https://github.com/dgroup/arch4u-pmd/actions/workflows/build.yml/badge.svg)](https://github.com/dgroup/arch4u-pmd/actions/workflows/build.yml)
-[![Dependency Status](https://requires.io/github/dgroup/arch4u-pmd/requirements.svg?branch=master)](https://requires.io/github/dgroup/arch4u-pmd/requirements/?branch=master)
 [![Known Vulnerabilities](https://snyk.io/test/github/dgroup/arch4u-pmd/badge.svg)](https://app.snyk.io/org/dgroup/project/c8b51bb3-7683-41c8-9a4e-b32a6f9069b6)
 
 [![Qulice](https://img.shields.io/badge/qulice-passed-blue.svg)](http://www.qulice.com/)