chore: remove the PayPal badge (TheAlgorithms#6348)

Author: nikhilkala

README.md

@@ -12,9 +12,6 @@
   <a href="https://github.com/TheAlgorithms/Python/blob/master/CONTRIBUTING.md">
     <img src="https://img.shields.io/static/v1.svg?label=Contributions&message=Welcome&color=0059b3&style=flat-square" height="20" alt="Contributions Welcome">
   </a>
-  <a href="https://www.paypal.me/TheAlgorithms/100">
-    <img src="https://img.shields.io/badge/Donate-PayPal-green.svg?logo=paypal&style=flat-square" height="20" alt="Donate">
-  </a>
   <img src="https://img.shields.io/github/repo-size/TheAlgorithms/Python.svg?label=Repo%20size&style=flat-square" height="20">
   <a href="https://discord.gg/c7MnfGFGa6">
     <img src="https://img.shields.io/discord/808045925556682782.svg?logo=discord&colorB=7289DA&style=flat-square" height="20" alt="Discord chat">