Unfortunately, I forgot to rebase before renaming trackMixpanelEvent() and a PR
adding a new trace point was already in-flight.
More precisely:
- https://github.com/weaveworks/scope/pull/2861 renames trackMixpanelEvent()
to trackAnalysticsEent()
- https://github.com/weaveworks/scope/pull/2857 add a new
trackMixpanelEvent() call.
Each PR is fine, but with the merge of both without rebasing any, we end up
with master having a dandling call to trackMixpanelEvent().