Remove advertisements and tracking.

[XhmikosR]

I wouldn't remove Google Analytics personally.

@vladikoff: see ^^ and what are we supposed to do with this in general

[jsf-clabot]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

[vladikoff]

We are gonna keep this one, we discussed removing this earlier last year