Update rpcs.md

- remove deprecated links for lavanet

Author: robertagora

networks/calibration/rpcs.md

@@ -42,10 +42,5 @@ FULLNODE_API_INFO=wss://wss.calibration.node.glif.io/apigw/lotus lotus daemon --
 * When using a lite-node, omit `/rpc/v1` from Glif’s WebSocket address.
 * [Glif documentation](https://hosting.glif.io/)
 
-## [Lava](https://docs.lavanet.xyz/filecoin)
-
-* HTTPS: `https://filecoin-testnet.lava.build`
-* [Lava documentation](https://docs.lavanet.xyz/filecoin-dev)
-
 
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