remove resolveDIDKey from ucanto server definition

src/server/index.js

@@ -18,25 +18,5 @@ export function createServer (ctx, service) {
     catch: err => console.error(err),
     // TODO: wire into revocations
     validateAuthorization: () => ({ ok: {} }),
-    // @ts-expect-error - The type is not defined in the ucan package, but it supports the method.
-    resolveDIDKey: (did) => resolveDIDKey(did, ctx)
   })
 }
-/**
- * Resolves the DID key for the given DID.
- *
- * @param {import('@ucanto/interface').DID} did - The DID to resolve
- * @param {import('../middleware/withUcanInvocationHandler.types.js').Context} ctx - The application context
- */
-const resolveDIDKey = (did, ctx) => {
-  if (did) {
-    if (did.startsWith('did:web') && did === ctx.gatewayIdentity.did()) {
-      return ok(ctx.gatewaySigner.toDIDKey())
-    }
-    if (did.startsWith('did:key')) {
-      return ok(did)
-    }
-  }
-
-  return error(new DIDResolutionError(did))
-}