delete routing document when it is empty
delete routing document when it is empty

* fixes "1 route found" if actually none was found

rku/marble,probonopd/marble,David-Gil/marble-dev,AndreiDuma/marble,utkuaydin/marble,oberluz/marble,probonopd/marble,rku/marble,quannt24/marble,tzapzoor/marble,David-Gil/marble-dev,utkuaydin/marble,adraghici/marble,tucnak/marble,oberluz/marble,probonopd/marble,Earthwings/marble,Earthwings/marble,quannt24/marble,probonopd/marble,Earthwings/marble,utkuaydin/marble,tzapzoor/marble,utkuaydin/marble,tzapzoor/marble,adraghici/marble,quannt24/marble,quannt24/marble,probonopd/marble,tucnak/marble,David-Gil/marble-dev,utkuaydin/marble,tzapzoor/marble,rku/marble,quannt24/marble,tucnak/marble,Earthwings/marble,utkuaydin/marble,probonopd/marble,tzapzoor/marble,AndreiDuma/marble,AndreiDuma/marble,David-Gil/marble-dev,tucnak/marble,adraghici/marble,rku/marble,AndreiDuma/marble,Earthwings/marble,oberluz/marble,quannt24/marble,oberluz/marble,adraghici/marble,tzapzoor/marble,David-Gil/marble-dev,adraghici/marble,David-Gil/marble-dev,AndreiDuma/marble,tzapzoor/marble,Earthwings/marble,tzapzoor/marble,oberluz/marble,quannt24/marble,tucnak/marble,rku/marble,AndreiDuma/marble,tucnak/marble,oberluz/marble,probonopd/marble,rku/marble,tucnak/marble,adraghici/marble