fix(build) Remove numpy (#12378)
fix(build) Remove numpy (#12378)

It currently has a security warning and is installed by default in
travis. This results in safety blowing up at least until travis updates
numpy.

mvaled/sentry,mvaled/sentry,beeftornado/sentry,mvaled/sentry,beeftornado/sentry,beeftornado/sentry,mvaled/sentry,mvaled/sentry,mvaled/sentry