Remove WIP reviews from reviewday report

With the changeover to WIP being part of Workflow, the old WIP
detection no longer worked. This change makes WIP detection work
again and removes WIP reviews from the reviewday output.

Change-Id: Ic059b1e20708d3d6b6391fcebd7ff57afe7d7b0e
Closes-bug: 1321018
Merge "Remove WIP reviews from reviewday report"