update funding.yml

Author: hey24sheep

.github/FUNDING.yml

@@ -9,4 +9,4 @@ community_bridge: # Replace with a single Community Bridge project-name e.g., cl
 liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
-custom: ['https://www.buymeacoffee.com/hey24sheep', 'https://www.paypal.me/hey24sheep']
+custom: ['https://www.buymeacoffee.com/hey24sheep']