diff --git a/a.js b/a.js
deleted file mode 100644
index 67c54792a..000000000
--- a/a.js
+++ /dev/null
@@ -1,8 +0,0 @@
-const glob = require('glob');
-const fs = require('fs');
-
-const legacy = glob.sync('src/**/demo.legacy.js');
-
-legacy.forEach((item) => {
-  fs.renameSync(item, item.replace('demo.legacy.js', 'demo.spec.js'));
-});