sdk: remove 5m guides

5m guides are available at
https://dashboard.seq.com/docs/5-minute-guide

The code for the guides is now tested at `product/test`.

Closes #3607

Author: Dan Croak <dan@statusok.com>
Date: Mon May 7 11:11:11 2018 -0700
upstream:a44b989cb82f0b2c581d2df35e744c078a60f40e

Author: croaky