remove express dependency

Author: enykeev

tasks/package.json

@@ -41,7 +41,6 @@
     "chalk": "2.4.2",
     "css-extract": "1.3.1",
     "event-stream": "4.0.1",
-    "express": "4.16.4",
     "fancy-log": "1.3.3",
     "fontello-update": "0.6.5",
     "git-rev-sync": "1.12.0",