remove freenode reference

Author: ryanio

README.md

@@ -1,9 +1,9 @@
 # ethereumjs-wallet
 
-[![NPM Package](https://img.shields.io/npm/v/ethereumjs-wallet.svg?style=flat-square)](https://www.npmjs.org/package/ethereumjs-wallet)
+[![NPM Package](https://img.shields.io/npm/v/ethereumjs-wallet.svg)](https://www.npmjs.org/package/ethereumjs-wallet)
 [![Actions Status](https://github.com/ethereumjs/ethereumjs-wallet/workflows/Build/badge.svg)](https://github.com/ethereumjs/ethereumjs-wallet/actions)
-[![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethereumjs-wallet.svg?style=flat-square)](https://coveralls.io/r/ethereumjs/ethereumjs-wallet)
-[![Gitter](https://img.shields.io/gitter/room/ethereum/ethereumjs-lib.svg?style=flat-square)](https://gitter.im/ethereum/ethereumjs-lib) or #ethereumjs on freenode
+[![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethereumjs-wallet.svg)](https://coveralls.io/r/ethereumjs/ethereumjs-wallet)
+[![Gitter](https://img.shields.io/gitter/room/ethereum/ethereumjs-lib.svg)](https://gitter.im/ethereum/ethereumjs-lib)
 
 A lightweight wallet implementation. At the moment it supports key creation and conversion between various formats.