Remove Support Ukraine banner from ReAgent README and docs

Summary: Remove the Support Ukraine banner badge from the ReAgent open source project README and docs index files.

Reviewed By: CamiWilliams

Differential Revision: D96484191

fbshipit-source-id: 221fb8289f9db97381b4edb1b0e79a34d77bf2d4

README.md

@@ -2,7 +2,6 @@
 
 ### ReAgent is officially archived and no longer maintained. For latest support on production-ready reinforcement learning open-source library, please refer to [Pearl](https://github.com/facebookresearch/Pearl/) - Production-ready Reinforcement Learning AI Agent Library, by the Applied Reinforcement Learning team @ Meta.
 
-[![Support Ukraine](https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB)](https://opensource.fb.com/support-ukraine)
 [![License](https://img.shields.io/badge/license-BSD%203--Clause-brightgreen)](LICENSE)
 [![CircleCI](https://circleci.com/gh/facebookresearch/ReAgent/tree/main.svg?style=shield)](https://circleci.com/gh/facebookresearch/ReAgent/tree/main)
 [![codecov](https://codecov.io/gh/facebookresearch/ReAgent/branch/main/graph/badge.svg)](https://codecov.io/gh/facebookresearch/ReAgent)

docs/index.rst

@@ -10,10 +10,6 @@
 ReAgent: Applied Reinforcement Learning Platform
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. image:: https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB
-   :alt: Support Ukraine - Help Provide Humanitarian Aid to Ukraine.
-   :target: https://opensource.fb.com/support-ukraine
-   
 .. image:: https://circleci.com/gh/facebookresearch/ReAgent/tree/main.svg?style=svg
     :target: https://circleci.com/gh/facebookresearch/ReAgent/tree/main