fix: remove duplicate async.each

License: MIT
Signed-off-by: Alan Shaw <alan@tableflip.io>

Author: alanshaw

Diff for: js/src/pubsub.js

@@ -11,7 +11,6 @@ const each = require('async/each')
 const waterfall = require('async/waterfall')
 const parallel = require('async/parallel')
 const whilst = require('async/whilst')
-const each = require('async/each')
 const hat = require('hat')
 
 // On Browsers it will be false, but the tests currently aren't run