remove express from package.json (#1060)

Author: coolzjy

template/package.json

@@ -60,7 +60,6 @@
     {{/if_eq}}
     {{/lint}}
     "eventsource-polyfill": "^0.9.6",
-    "express": "^4.14.1",
     "extract-text-webpack-plugin": "^3.0.0",
     "file-loader": "^1.1.4",
     "friendly-errors-webpack-plugin": "^1.6.1",