Merge pull request #265 from Azure/test_repo_breaking_change_mlc

Revert "DEBUG"

Author: kazrael2119

common/tools/dev-tool/src/commands/admin/migrate-package.ts

@@ -462,12 +462,6 @@ async function addNewPackages(packageJson: any, options: { browser: boolean }):
     { package: "@azure/core-util", version: undefined },
   ];
 
-  packageJson.devDependencies["vitest"] = "^2.1.8";
-  packageJson.devDependencies["@vitest/coverage-istanbul"] = "^2.1.8";
-  if (options.browser) {
-    packageJson.devDependencies["@vitest/browser"] = "^2.1.8";
-  }
-  
   // Update additional if there
   for (const { package: packageName, version } of packagesToUpdate) {
     if (packageJson.devDependencies[packageName]) {