Update rpcs.md

Removed drpc as they seem to have removed RPCS for filecoin.

Removed chainup websocket, as they only offer HTTP on calibnet now

Author: CluEleSsUK

networks/calibration/rpcs.md

@@ -18,15 +18,8 @@ These endpoints are limited to [read-only Filecoin JSON RPC API calls](../../ref
 ## [ChainupCloud](https://cloud.chainup.com)
 
 * HTTPS: `https://filecoin-calibration.chainup.net/rpc/v1`
-* WebSocket: `wss://filecoin-calibration.chainup.net/rpc/v1`
 * [ChainupCloud documentation](https://docs.chainupcloud.com/blockchain-api/filecoin/public-apis)
 
-## [dRPC](https://drpc.org/chainlist/filecoin)
-
-* HTTPS: `https://filecoin.drpc.org`
-* WebSocket: `wss://filecoin.drpc.org`
-* [dRPC documentation](https://docs.drpc.org/)
-
 ## [Glif](https://api.calibration.node.glif.io)
 
 Please note that publicly available hosted endpoints **only guarantee 2000 of the latest blocks.**