Update babel.config.js

Author: huangshuwei

babel.config.js

@@ -19,7 +19,7 @@ module.exports = {
     env: {
         test: {
             //presets: [["env", { targets: { node: "current" } }]],
-            plugins: ["istanbul"]
+            //plugins: ["istanbul"]
         }
     }
 };