Fix fast-refresh

Summary: Changelog: Make yarn start --fast-refreash load dynamic plugins

Reviewed By: lblasa

Differential Revision: D39653965

fbshipit-source-id: f6133ff0315c014e3e1c4c7921318a6d7db70eaf

desktop/flipper-server-core/src/plugins/loadDynamicPlugins.tsx

@@ -7,8 +7,6 @@
  * @format
  */
 
-import path from 'path';
-import fs from 'fs-extra';
 import {
   getSourcePlugins,
   moveInstalledPluginsFromLegacyDir,
@@ -23,12 +21,6 @@ export async function loadDynamicPlugins(): Promise<InstalledPluginDetails[]> {
   if (process.env.NODE_ENV === 'test') {
     return [];
   }
-  if (process.env.FLIPPER_FAST_REFRESH) {
-    console.log(
-      '❌  Skipping loading of dynamic plugins because Fast Refresh is enabled. Fast Refresh only works with bundled plugins.',
-    );
-    return [];
-  }
   await moveInstalledPluginsFromLegacyDir().catch((ex) =>
     console.error(
       'Eror while migrating installed plugins from legacy folder',