deprecating fleetsmith instructions > drivestrike

Why is this change being made?

moving away from fleetsmith as reporting tool, adding drivestrike as replacement tool and detailing what is being reported and what capabilities drivestrike has. Drivestrike offers all the same reporting features as Fleetsmith (free) Intelligence, at 1/10th the cost of the basic Fleetsmith (paid) services. Drivestrike is also available on ALL operating systems, Fleetsmith only mac and windows currently.

https://gitlab.com/gitlab-com/business-ops/itops/issue-tracker/issues/251

Does this MR meet the acceptance criteria?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what

/cc @gitlab-com/business-ops/itops