Refactor unused import and object in Flight plugin (#69266)

Only the `modules` field of `loaderOptions` is used.

packages/next/src/build/webpack/plugins/flight-client-entry-plugin.ts

@@ -1,7 +1,6 @@
 import type {
  CssImports,
  ClientComponentImports,
- FlightClientEntryModuleItem,
 } from '../loaders/next-flight-client-entry-loader'
 
 import { webpack } from 'next/dist/compiled/webpack/webpack'
@@ -841,38 +840,32 @@ export class FlightClientEntryPlugin {
  ] {
  let shouldInvalidate = false
 
- const loaderOptions: {
- modules: FlightClientEntryModuleItem[]
- server: boolean
- } = {
- modules: Object.keys(clientImports)
- .sort((a, b) => (regexCSS.test(b) ? 1 : a.localeCompare(b)))
- .map((clientImportPath) => ({
- request: clientImportPath,
- ids: [...clientImports[clientImportPath]],
- })),
- server: false,
- }
+ const modules = Object.keys(clientImports)
+ .sort((a, b) => (regexCSS.test(b) ? 1 : a.localeCompare(b)))
+ .map((clientImportPath) => ({
+ request: clientImportPath,
+ ids: [...clientImports[clientImportPath]],
+ }))
 
  // For the client entry, we always use the CJS build of Next.js. If the
  // server is using the ESM build (when using the Edge runtime), we need to
  // replace them.
  const clientBrowserLoader = `next-flight-client-entry-loader?${stringify({
  modules: (this.isEdgeServer
- ? loaderOptions.modules.map(({ request, ids }) => ({
+ ? modules.map(({ request, ids }) => ({
  request: request.replace(
  /[\\/]next[\\/]dist[\\/]esm[\\/]/,
  '/next/dist/'.replace(/\//g, path.sep)
  ),
  ids,
  }))
- : loaderOptions.modules
+ : modules
  ).map((x) => JSON.stringify(x)),
  server: false,
  })}!`
 
  const clientSSRLoader = `next-flight-client-entry-loader?${stringify({
- modules: loaderOptions.modules.map((x) => JSON.stringify(x)),
+ modules: modules.map((x) => JSON.stringify(x)),
  server: true,
  })}!`