Removed unnecessary SearchQuery._combine().
Removed unnecessary SearchQuery._combine().

Unnecessary since its introduction in 2d877da85526bad0dad7fd6b1d56b1f924c0116a.

theo-l/django,claudep/django,solarissmoke/django,wkschwartz/django,rsalmaso/django,shaib/django,shaib/django,claudep/django,blighj/django,takis/django,ghickman/django,pauloxnet/django,adamchainz/django,monetate/django,dsanders11/django,rsalmaso/django,django/django,freakboy3742/django,monetate/django,manhhomienbienthuy/django,wkschwartz/django,manhhomienbienthuy/django,googleinterns/django,takis/django,blighj/django,blighj/django,monetate/django,apollo13/django,MarkusH/django,rsalmaso/django,felixxm/django,apollo13/django,googleinterns/django,googleinterns/django,solarissmoke/django,auvipy/django,shaib/django,koordinates/django,elena/django,shaib/django,claudep/django,elena/django,django/django,googleinterns/django,pauloxnet/django,atul-bhouraskar/django,auvipy/django,kaedroho/django,manhhomienbienthuy/django,dsanders11/django,takis/django,pauloxnet/django,koordinates/django,felixxm/django,MarkusH/django,manhhomienbienthuy/django,elena/django,theo-l/django,adamchainz/django,django/django,wkschwartz/django,takis/django,atul-bhouraskar/django,freakboy3742/django,MarkusH/django,kaedroho/django,adamchainz/django,ghickman/django,auvipy/django,apollo13/django,wkschwartz/django,dsanders11/django,monetate/django,koordinates/django,kaedroho/django,rsalmaso/django,auvipy/django,elena/django,pauloxnet/django,freakboy3742/django,solarissmoke/django,theo-l/django,MarkusH/django,dsanders11/django,theo-l/django,koordinates/django,claudep/django,django/django,ghickman/django,blighj/django,apollo13/django,felixxm/django,felixxm/django,solarissmoke/django,ghickman/django,atul-bhouraskar/django,adamchainz/django,atul-bhouraskar/django