remove unused deps

package.json

@@ -20,15 +20,13 @@
     "chalk": "^2.3.0",
     "chokidar": "^1.7.0",
     "code-frame": "^5.0.0",
-    "compression": "^1.7.1",
     "escape-html": "^1.0.3",
-    "fs-extra": "^5.0.0",
     "locate-character": "^2.0.5",
     "mkdirp": "^0.5.1",
-    "node-spider": "^1.4.1",
     "relative": "^3.0.2",
     "require-relative": "^0.8.7",
     "rimraf": "^2.6.2",
+    "sander": "^0.6.0",
     "serialize-javascript": "^1.4.0",
     "walk-sync": "^0.3.2",
     "webpack": "^3.10.0",