Cleanup google_docs

Change-Id: Iaa8545a3f39cd8708b1ea20a9c27836dcbdacb0a
Reviewed-on: https://gerrit.instructure.com/32860
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Trevor deHaan <tdehaan@instructure.com>
Reviewed-by: Braden Anderson <banderson@instructure.com>
Product-Review: Simon Williams <simon@instructure.com>