删除不必要的lib

@@ -2966,7 +2966,8 @@
       "version": "3.0.0",
       "resolved": "https://registry.npm.taobao.org/boolean/download/boolean-3.0.0.tgz",
       "integrity": "sha1-+reNWQfbrmIWq0bTJzO7e3a5nnY=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "boxen": {
       "version": "3.2.0",
@@ -6461,7 +6462,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -6885,7 +6887,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -6941,6 +6944,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6984,12 +6988,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },