guardian/frontend — pull request #6970 by ironsidevsquincy (2014-11-05 12:14:11+00:00)
Title: When hiding MPUs, don't use hide-on-mobile class

Not a particularly useful class as it includes

```
@include mq(tablet) {
display: block !important;
}
```

i.e. with `!important`, so they can't be hidden in the future (which DFP does to ad slots if no ad is served)