style(cli): drop duplicate comment above plugins shim loop

The constant declaration's comment already explains why the loop exists.
Restating it at the loop site is noise — the reviewer flagged it during
code review.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: Brooooooklyn

packages/cli/build.ts

@@ -495,9 +495,6 @@ async function syncTestPackageExports() {
   generatedExports['./test/browser-compat'] = await createBrowserCompatExport(testDistDir);
   console.log('  Created ./test/browser-compat');
 
-  // Restore the `./test/plugins/<name>` surface that the removed
-  // `@voidzero-dev/vite-plus-test` wrapper previously exposed. Each entry is
-  // a one-line `export * from '@vitest/<x>'` re-export shim.
   for (const [importSpecifier, pluginName] of PLUGIN_SHIM_ENTRIES) {
     const shimExport = await createShimForExport(
       `plugins/${pluginName}`,