do not clean up router-slot now that its moved

src/Umbraco.Web.UI.Client/devops/publish/cleanse-pkg.js

@@ -5,11 +5,6 @@ console.log('[Prepublish] Cleansing package.json');
 const packageFile = './package.json';
 const packageJson = JSON.parse(readFileSync(packageFile, 'utf8'));
 
-/**
- * Here we will modify the package.json to remove dependencies that are not needed in the CMS or does not work on npm.
- */
-delete packageJson.dependencies['router-slot'];
-
 // Remove all DevDependencies
 delete packageJson.devDependencies;