fix(copy): #540 optimize Copy

Author: liuxy0551

package.json

@@ -125,8 +125,7 @@
         "react-syntax-highlighter": "~15.5.0",
         "remark-gfm": "~3.0.1",
         "shortid": "^2.2.16",
-        "showdown": "^1.9.0",
-        "use-clippy": "^1.0.9"
+        "showdown": "^1.9.0"
     },
     "config": {
         "commitizen": {