Remove extra logic of Server Reference check for registering twice (#…

…62486)

This isn't necessary as it has been landed in React already:
facebook/react#28343.

Closes NEXT-2586

packages/next/src/build/webpack/loaders/next-flight-loader/server-reference.ts

@@ -1,17 +1,6 @@
 /* eslint-disable import/no-extraneous-dependencies */
 import { registerServerReference as flightRegisterServerReference } from 'react-server-dom-webpack/server.edge'
 
-const SERVER_REFERENCE_TAG = Symbol.for('react.server.reference')
-
-function isServerReference(reference: any) {
-  return reference && reference.$$typeof === SERVER_REFERENCE_TAG
-}
-
 export function registerServerReference(id: string, action: any) {
-  // Avoid registering the same action twice
-  if (isServerReference(action)) {
-    return action
-  }
-
   return flightRegisterServerReference(action, id, null)
 }