Fix all JSHint complaints in Node.js code.

lib/roles/device/support/router.js

@@ -1,13 +1,11 @@
 var syrup = require('syrup')
 
-var logger = require('../../../util/logger')
 var wirerouter = require('../../../wire/router')
 
 module.exports = syrup.serial()
   .dependency(require('./sub'))
   .dependency(require('./channels'))
   .define(function(options, sub, channels) {
-    var log = logger.createLogger('device:support:router')
     var router = wirerouter()
 
     sub.on('message', router.handler())