Remove non-functional log tag

Summary:
Remove non-functional log tag. Filename is already shown in logs
automatically.

Reviewed By: shri-khare

Differential Revision: D62051397

fbshipit-source-id: 63add3df537475785029691b93cd721ed697895b

fboss/fsdb/client/FsdbSubscriber.h

@@ -230,7 +230,7 @@ class FsdbSubscriber : public FsdbSubscriberBase {
         updateSubscriptionState(SubscriptionState::CANCELLED);
         break;
       default:
-        XLOG(DBG2) << "FsdbScubscriber: no-op transition for ConnectionState: "
+        XLOG(DBG2) << "No-op transition for ConnectionState: "
                    << connectionStateToString(oldState) << " -> "
                    << connectionStateToString(newState);
         break;