remove non-draft state wiki pages

test plan:
* regression test wiki pages

closes CNVS-16203

Change-Id: Ic37c69c8696151dc99f1df6f3cc9b013835b12a4
Reviewed-on: https://gerrit.instructure.com/42552
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: James Williams  <jamesw@instructure.com>
QA-Review: James Williams  <jamesw@instructure.com>