Delete responsive-viewer

I have moved the responsive viewer to an S3 bucket...

http://s3-eu-west-1.amazonaws.com/facia/responsive-viewer.html

http://s3-eu-west-1.amazonaws.com/facia/responsive-viewer.html#env=code&url=/football

We are not putting random tools on our stack. It is for serving pages to members of the public and that is all.

Dropping other things on our stack is a slippery slope that we are not going down.