Remove Zora reference (because it's not in the SDK yet)

src/docs/sdk/js-client.md

@@ -8,7 +8,7 @@ There are a few areas in which the SDK can help you navigate [the differences be
 - [Gas costs](../developers/build/transaction-fees.md)
 - [Interlayer communication](../developers/bridge/basics.md)
 
-The SDK supports multiple OP Chains: OP, Base, Zora, etc.
+The SDK supports multiple OP Chains: OP, Base, etc.
 To see whether a specific OP Chain is supported directly, [see the documentation](https://sdk.optimism.io/enums/l2chainid).
 Chains that aren't officially supported just take a few extra steps.
 Get the L1 contract addresses, and [provide them to the SDK](https://stack.optimism.io/docs/build/sdk/#contract-addresses).