[DRE-maint] ruby-influxdb is marked for autoremoval from testing

[Debian testing autoremoval watch]

ruby-influxdb 0.2.3-1 is marked for autoremoval from testing on 2017-09-17

It is affected by these RC bugs:
867645: ruby-influxdb: FTBFS: ERROR: Test "ruby2.3" failed: Failure/Error: http.request(req)