Don't install weatherspect anymore

Summary:
Initially installed to add flavour to the console experience
with cool CLI utilities (see T245 and T251), weatherspect
isn't maintained anymore (last change in 2013), deprecated
on FreeBSD.

Fixes T1556.

Test Plan: Apply devserver role to WindRiver

Reviewers: dereckson

Reviewed By: dereckson

Maniphest Tasks: T1556

Differential Revision: https://devcentral.nasqueron.org/D2131