cli: remove plugin.ts addition from create-plugin

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/fresh-cheetahs-rush.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+No longer add newly created plugins to `plugins.ts` in the app, as it is no longer needed.

packages/cli/src/commands/create-plugin/createPlugin.ts

@@ -106,24 +106,6 @@ export async function addPluginDependencyToApp(
   });
 }
 
-export async function addPluginImportToApp(
-  rootDir: string,
-  pluginVar: string,
-  pluginPackage: string,
-) {
-  const pluginExport = `export { ${pluginVar} } from '${pluginPackage}';`;
-  const pluginsFilePath = 'packages/app/src/plugins.ts';
-  const pluginsFile = resolvePath(rootDir, pluginsFilePath);
-
-  await Task.forItem('processing', pluginsFilePath, async () => {
-    await addExportStatement(pluginsFile, pluginExport).catch(error => {
-      throw new Error(
-        `Failed to import plugin in app: ${pluginsFile}: ${error.message}`,
-      );
-    });
-  });
-}
-
 export async function addPluginExtensionToApp(
   pluginId: string,
   extensionName: string,
@@ -320,7 +302,6 @@ export default async (cmd: Command) => {
       await addPluginDependencyToApp(paths.targetRoot, name, pluginVersion);
 
       Task.section('Import plugin in app');
-      await addPluginImportToApp(paths.targetRoot, pluginVar, name);
       await addPluginExtensionToApp(pluginId, extensionName, name);
     }