Remove unused dependency (#82)

Author: mathiasbynens

package.json

@@ -38,7 +38,6 @@
     "idle"
   ],
   "dependencies": {
-    "chalk": "^1.1.3",
     "cli-truncate": "^0.2.1",
     "figures": "^1.7.0",
     "indent-string": "^2.1.0",