remove long running cukes to avoid travis timeouts

## motivation

I am getting a handle on what is possible and practical to test on travis.  There is a 50 minute limit on  any build.

The last PR pushed a bunch of cucumbers that now do not have to be run.

I tagged these irrelevant cukes with @no_ci.  The travis build now runs in ~10 minutes.

Scenarios tags with @no_ci  will either be deleted or moved to briar-ios-example.