Remove DataValuesCommon and ShortUrlApi (broken)

Getting errors like:
fatal: Needed a single revision
Unable to find current revision in submodule path 'DataValuesCommon'

when trying to $ git submodule update

Change-Id: I3d09a1d7e05c128a2f270755e40eb0e5bd3cae90
Merge "Remove DataValuesCommon and ShortUrlApi (broken)"