remove unused import
remove unused import

rapidsms/rapidsms-core-dev,dimagi/rapidsms-core-dev,eHealthAfrica/rapidsms,caktus/rapidsms,unicefuganda/edtrac,lsgunth/rapidsms,dimagi/rapidsms,catalpainternational/rapidsms,unicefuganda/edtrac,rapidsms/rapidsms-core-dev,ken-muturi/rapidsms,peterayeni/rapidsms,ken-muturi/rapidsms,lsgunth/rapidsms,caktus/rapidsms,dimagi/rapidsms,catalpainternational/rapidsms,unicefuganda/edtrac,eHealthAfrica/rapidsms,ken-muturi/rapidsms,ehealthafrica-ci/rapidsms,caktus/rapidsms,peterayeni/rapidsms,catalpainternational/rapidsms,ehealthafrica-ci/rapidsms,lsgunth/rapidsms,ehealthafrica-ci/rapidsms,peterayeni/rapidsms,catalpainternational/rapidsms,peterayeni/rapidsms,eHealthAfrica/rapidsms,lsgunth/rapidsms,dimagi/rapidsms-core-dev