Update package.json

package.json

@@ -29,7 +29,6 @@
     "babel-preset-stage-2": "^6.22.0",
     "babel-register": "^6.22.0",
     "chalk": "^2.0.1",
-    "chromedriver": "^2.27.2",
     "copy-webpack-plugin": "^4.0.1",
     "cross-spawn": "^5.0.1",
     "css-loader": "^0.28.0",