Remove gerritbot limit test
Remove gerritbot limit test

gerritbot can now handle more than 120 channels, remove the test for it.

Change-Id: If6d1630581762aab93c979ba7852f845bc2846f5
Depends-On: Ifafeed77e640bc7b5910251c619358a8a2bd78a6

Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config,Tesora/tesora-project-config