Don't show hot market if it is not hot

On https://about.gitlab.com/jobs/production-engineer/?area=Minnesota&country=United-States&experience=2&level=Intermediate&low=69486&high=77207#compensation you see https://www.dropbox.com/s/2rqrmtbg2obafqo/Screenshot%202017-09-11%2013.04.18.png?dl=0

I think we can hide the hot market if it is not a hot market.

@ernstvn can you assign someone?