Only check db/api.py for session in arguments
Only check db/api.py for session in arguments

We were checking both db/api.py and db/sqlalchemy/api.py for session
in db apis, but db apis are only defined externall in db/api.py. This
rule will falsely match on non-api methods in db/sqlalchemy/api.py
which take a session argument. Passing the session around within this
module is considered a good thing.

Change-Id: Ibf5d1284b44013c736b6b70ca4fa5d706c365c7d

MountainWei/nova,apporc/nova,zhimin711/nova,tealover/nova,Yusuke1987/openstack_template,takeshineshiro/nova,adelina-t/nova,sebrandon1/nova,nikesh-mahalka/nova,vmturbo/nova,mikalstill/nova,yatinkumbhare/openstack-nova,noironetworks/nova,kimjaejoong/nova,dawnpower/nova,devendermishrajio/nova,cloudbase/nova-virtualbox,gooddata/openstack-nova,iuliat/nova,zzicewind/nova,petrutlucian94/nova,TwinkleChawla/nova,dims/nova,LoHChina/nova,j-carpentier/nova,scripnichenko/nova,j-carpentier/nova,silenceli/nova,jianghuaw/nova,double12gzh/nova,felixma/nova,mikalstill/nova,akash1808/nova,klmitch/nova,vmturbo/nova,mmnelemane/nova,gooddata/openstack-nova,Juniper/nova,tealover/nova,phenoxim/nova,isyippee/nova,ruslanloman/nova,Yusuke1987/openstack_template,JianyuWang/nova,TwinkleChawla/nova,gooddata/openstack-nova,mmnelemane/nova,fnordahl/nova,mahak/nova,eonpatapon/nova,akash1808/nova_test_latest,Stavitsky/nova,mgagne/nova,tangfeixiong/nova,watonyweng/nova,klmitch/nova,cloudbase/nova,Juniper/nova,raildo/nova,ruslanloman/nova,felixma/nova,akash1808/nova_test_latest,thomasem/nova,affo/nova,jianghuaw/nova,ted-gould/nova,Francis-Liu/animated-broccoli,fnordahl/nova,jeffrey4l/nova,orbitfp7/nova,whitepages/nova,mahak/nova,vmturbo/nova,devendermishrajio/nova,rajalokan/nova,hanlind/nova,LoHChina/nova,takeshineshiro/nova,jeffrey4l/nova,cernops/nova,projectcalico/calico-nova,Stavitsky/nova,zhimin711/nova,zaina/nova,barnsnake351/nova,rajalokan/nova,alvarolopez/nova,dawnpower/nova,JianyuWang/nova,alexandrucoman/vbox-nova-driver,alvarolopez/nova,varunarya10/nova_test_latest,akash1808/nova,scripnichenko/nova,bigswitch/nova,isyippee/nova,tudorvio/nova,zaina/nova,belmiromoreira/nova,mandeepdhami/nova,dims/nova,eonpatapon/nova,cernops/nova,yosshy/nova,double12gzh/nova,CEG-FYP-OpenStack/scheduler,cloudbase/nova,cernops/nova,whitepages/nova,joker946/nova,JioCloud/nova,MountainWei/nova,iuliat/nova,jianghuaw/nova,joker946/nova,klmitch/nova,zzicewind/nova,phenoxim/nova,cyx1231st/nova,JioCloud/nova,hanlind/nova,noironetworks/nova,blueboxgroup/nova,CCI-MOC/nova,yatinkumbhare/openstack-nova,affo/nova,hanlind/nova,sebrandon1/nova,mahak/nova,petrutlucian94/nova,CEG-FYP-OpenStack/scheduler,cloudbase/nova,sebrandon1/nova,tudorvio/nova,BeyondTheClouds/nova,orbitfp7/nova,shail2810/nova,barnsnake351/nova,ted-gould/nova,klmitch/nova,kimjaejoong/nova,jianghuaw/nova,adelina-t/nova,thomasem/nova,alaski/nova,rahulunair/nova,shail2810/nova,bigswitch/nova,Tehsmash/nova,rajalokan/nova,tangfeixiong/nova,Metaswitch/calico-nova,yosshy/nova,edulramirez/nova,openstack/nova,mandeepdhami/nova,mgagne/nova,JioCloud/nova_test_latest,CloudServer/nova,devendermishrajio/nova_test_latest,vmturbo/nova,nikesh-mahalka/nova,Tehsmash/nova,NeCTAR-RC/nova,gooddata/openstack-nova,BeyondTheClouds/nova,apporc/nova,BeyondTheClouds/nova,openstack/nova,raildo/nova,varunarya10/nova_test_latest,watonyweng/nova,openstack/nova,edulramirez/nova,cyx1231st/nova,projectcalico/calico-nova,Juniper/nova,alaski/nova,JioCloud/nova_test_latest,belmiromoreira/nova,devendermishrajio/nova_test_latest,rahulunair/nova,CCI-MOC/nova,rahulunair/nova,blueboxgroup/nova,cloudbase/nova-virtualbox,mikalstill/nova,Juniper/nova,silenceli/nova,CloudServer/nova,rajalokan/nova,alexandrucoman/vbox-nova-driver,NeCTAR-RC/nova,bgxavier/nova,bgxavier/nova,Francis-Liu/animated-broccoli,Metaswitch/calico-nova