dropping broken bundle size badge

Author: jekuer

README.md

@@ -4,7 +4,6 @@
 [![npm Installations Total](https://img.shields.io/npm/dt/add-to-calendar-button?label=npm%20Installations&style=for-the-badge)](https://www.npmjs.com/package/add-to-calendar-button)
 [![npm Installations per Month](https://img.shields.io/npm/dm/add-to-calendar-button?label=npm%20Installations%2FMonth&style=for-the-badge)](https://www.npmjs.com/package/add-to-calendar-button)
 [![jsDelivr npm Hits](https://img.shields.io/jsdelivr/npm/hm/add-to-calendar-button?label=jsDelivr%20npm%20hits&style=for-the-badge)](https://www.jsdelivr.com/package/npm/add-to-calendar-button?tab=stats)
-![npm bundle size](https://img.shields.io/bundlephobia/minzip/add-to-calendar-button?style=for-the-badge)
 
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