chore: Update readme

Author: dmtrKovalenko

README.md

@@ -1,7 +1,5 @@
 # date-io
 
-[![Stand With Ukraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/banner2-direct.svg)](https://vshymanskyy.github.io/StandWithUkraine/)
-
 Abstraction over common JavaScript date management libraries.
 
 [![npm package](https://img.shields.io/npm/v/@date-io/core.svg)](https://www.npmjs.org/package/@date-io/core)