feat(jsonp): Remove JSONP middleware

JSONP is a relic of the ancient past. If you're using it, you shouldn't
be.

Author: orangejulius

app.js

@@ -12,7 +12,6 @@ app.use( require('./middleware/headers') );
 app.use( require('./middleware/cors') );
 app.use( require('./middleware/robots') );
 app.use( require('./middleware/options') );
-app.use( require('./middleware/jsonp') );
 
 /** ----------------------- routes ----------------------- **/