diff --git a/packages/core/start.js b/packages/core/start.js
deleted file mode 100644
index 9a797dd..0000000
--- a/packages/core/start.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// eslint-disable-next-line no-unused-vars
-const start = require('./start/index.js')
diff --git a/packages/core/start2.js b/packages/core/start2.js
deleted file mode 100644
index 6eaa8fb..0000000
--- a/packages/core/start2.js
+++ /dev/null
@@ -1 +0,0 @@
-const https = require('https')
diff --git a/packages/mitmproxy/src/utils/os.util.js b/packages/mitmproxy/src/utils/os.util.js
deleted file mode 100644
index 9f8aaf7..0000000
--- a/packages/mitmproxy/src/utils/os.util.js
+++ /dev/null
@@ -1,6 +0,0 @@
-const os = require('os')
-module.exports = {
-  isWindows7 () {
-    const version = os.release()
-  }
-}