remove code climate badge

Author: dangowans

README.md

@@ -2,7 +2,6 @@
 
 [![npm (scoped)](https://img.shields.io/npm/v/%40cityssm/green-button-parser)](https://www.npmjs.com/package/@cityssm/green-button-parser)
 [![DeepSource](https://app.deepsource.com/gh/cityssm/node-green-button-parser.svg/?label=active+issues&show_trend=true&token=LAEc-5uihnFgNpJWscc1Kj1t)](https://app.deepsource.com/gh/cityssm/node-green-button-parser/?ref=repository-badge)
-[![Maintainability](https://api.codeclimate.com/v1/badges/ad98bbdea3b40237515e/maintainability)](https://codeclimate.com/github/cityssm/node-green-button-parser/maintainability)
 [![codecov](https://codecov.io/gh/cityssm/node-green-button-parser/branch/main/graph/badge.svg?token=9BJU6NU0WR)](https://codecov.io/gh/cityssm/node-green-button-parser)
 
 Parse Green Button® formatted energy consumption feeds into JSON.