Merge pull request #98 from MarryamZulfiqar/patch-3

Updated RPC List for Third party RPC providers for Core mainnet

Author: RumeelHussain

docs/Dev-Guide/rpc-list.md

@@ -50,7 +50,6 @@ Note: This is the latest and officially supported testnet for the Core blockchai
 
 - **Ankr:** https://rpc.ankr.com/core
 - **1RPC:** https://1rpc.io/core
-- **INFSTONES:** https://core.public.infstones.com
 - **IceCreamSwap:** https://rpc-core.icecreamswap.com
 - **ZAN Node:** https://api.zan.top/core-mainnet
 - **dRPC:** https://core.drpc.org | wss://core.drpc.org