Remove 3 repos no more in Gerrit

Repos removed from Gerrit:
- analytics/check-stats
- analytics/editor-geocoding
- operations/debs/buck

Related jobs to be deleted:

analytics-check-stats-pep8
analytics-check-stats-pyflakes
analytics-check-stats-sphinx-doc
analytics-editor-geocoding-pep8
analytics-editor-geocoding-pyflakes
analytics-editor-geocoding-sphinx-doc
operations-debs-buck-debian-glue

Change-Id: I18b4201a415f12757cbdb7df51cc78c8a4749c9b