remove op-bindings from README.md (ethereum-optimism#10623)

README.md

@@ -64,7 +64,6 @@ The Optimism Immunefi program offers up to $2,000,042 for in-scope critical vuln
 <pre>
 ├── <a href="./docs">docs</a>: A collection of documents including audits and post-mortems
 ├── <a href="./op-batcher">op-batcher</a>: L2-Batch Submitter, submits bundles of batches to L1
-├── <a href="./op-bindings">op-bindings</a>: Go bindings for Bedrock smart contracts.
 ├── <a href="./op-bootnode">op-bootnode</a>: Standalone op-node discovery bootnode
 ├── <a href="./op-chain-ops">op-chain-ops</a>: State surgery utilities
 ├── <a href="./op-challenger">op-challenger</a>: Dispute game challenge agent