Remove dead link to Oasis SDK

It leads to a 404

Author: flanagansteve

src/content/developers/docs/programming-languages/rust/index.md

@@ -26,7 +26,6 @@ Need a more basic primer first? Check out [ethereum.org/learn](/learn/) or [ethe
 - [The Rust Ethereum Client](https://openethereum.github.io/) \* **Note that OpenEthereum [has been deprecated](https://medium.com/openethereum/gnosis-joins-erigon-formerly-turbo-geth-to-release-next-gen-ethereum-client-c6708dd06dd) and is no longer being maintained.** Use it with caution and preferably switch to another client implementation.
 - [Sending Transaction to Ethereum Using Rust](https://kauri.io/#collections/A%20Hackathon%20Survival%20Guide/sending-ethereum-transactions-with-rust/)
 - [An Introduction to Smart Contracts with Parity Ethereum Client](https://wiki.parity.io/Smart-Contracts)
-- [Setting up your Oasis SDK dev environment](https://docs.oasis.dev/oasis-sdk/guide/getting-started)
 - [A step-by-step tutorial on how to write contracts in rust Wasm for Kovan](https://github.com/paritytech/pwasm-tutorial)
 
 ## Intermediate articles {#intermediate-articles}