Remove myself as maintainer

Author: paf31

README.md

@@ -3,7 +3,6 @@
 [![Latest release](http://img.shields.io/github/release/purescript-contrib/purescript-string-parsers.svg)](https://github.com/purescript-contrib/purescript-string-parsers/releases)
 [![Build status](https://travis-ci.org/purescript-contrib/purescript-string-parsers.svg?branch=master)](https://travis-ci.org/purescript-contrib/purescript-string-parsers)
 [![Dependency status](https://img.shields.io/librariesio/github/purescript-contrib/purescript-string-parsers.svg)](https://libraries.io/github/purescript-contrib/purescript-string-parsers)
-[![Maintainer: paf31](https://img.shields.io/badge/maintainer-paf31-lightgrey.svg)](http://github.com/paf31)
 
 A parsing library for parsing strings.