Merge pull request #4246 from backstage/rugvip/nemac

remove last usages of APP_ENV

packages/backend-common/src/config.ts

@@ -37,7 +37,6 @@ export async function loadBackendConfig(options: Options): Promise<Config> {
   /* eslint-disable-next-line no-restricted-syntax */
   const paths = findPaths(__dirname);
   const configs = await loadConfig({
-    env: process.env.APP_ENV ?? process.env.NODE_ENV ?? 'development',
     configRoot: paths.targetRoot,
     configPaths: configOpts.map(opt => resolvePath(opt)),
   });