Update protocol.ts

Author: allenzhou101

src/shared/protocol.ts

@@ -357,8 +357,6 @@ export abstract class Protocol<
     const abortController = new AbortController();
     this._requestHandlerAbortControllers.set(request.id, abortController);
 
-    // Create `fullExtra` object with both abort signal and sessionId from transport
-    // in addition to any authInfo provided
     const fullExtra: RequestHandlerExtra<SendRequestT, SendNotificationT> = {
       signal: abortController.signal,
       sessionId: this._transport?.sessionId,