remove unnecessary line from importer_spec
remove unnecessary line from importer_spec

CartoDB/cartodb,CartoDB/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,codeandtheory/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,codeandtheory/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,codeandtheory/cartodb