Remove db layer hard-code permission checks for keypair
Remove db layer hard-code permission checks for keypair

There are user-owner permission checks in the db layer for keypairs.
Actually those permission should be checked by policy. As this patch
I45846f770628e8f24a8c137dcdc46baa64c50801 add policy rule enable admin
user can access non-admin user's keypairs, so the permission check
should be deleted from db layer.

Partially implements bp nova-api-policy-final-part

Change-Id: Ieb9009ffb11a3f5341b2f8b7996a8af8314b9e74

sebrandon1/nova,zzicewind/nova,CCI-MOC/nova,BeyondTheClouds/nova,cernops/nova,iuliat/nova,mikalstill/nova,devendermishrajio/nova,shail2810/nova,whitepages/nova,mikalstill/nova,rahulunair/nova,bigswitch/nova,vmturbo/nova,yosshy/nova,LoHChina/nova,CCI-MOC/nova,scripnichenko/nova,TwinkleChawla/nova,hanlind/nova,dims/nova,TwinkleChawla/nova,gooddata/openstack-nova,cernops/nova,raildo/nova,raildo/nova,klmitch/nova,phenoxim/nova,NeCTAR-RC/nova,rajalokan/nova,Juniper/nova,apporc/nova,bigswitch/nova,takeshineshiro/nova,scripnichenko/nova,fnordahl/nova,vmturbo/nova,LoHChina/nova,ted-gould/nova,mahak/nova,apporc/nova,gooddata/openstack-nova,openstack/nova,jianghuaw/nova,rajalokan/nova,cloudbase/nova,jianghuaw/nova,klmitch/nova,watonyweng/nova,cernops/nova,mikalstill/nova,phenoxim/nova,yosshy/nova,shail2810/nova,BeyondTheClouds/nova,felixma/nova,dims/nova,rajalokan/nova,hanlind/nova,whitepages/nova,edulramirez/nova,Juniper/nova,edulramirez/nova,NeCTAR-RC/nova,klmitch/nova,jianghuaw/nova,mahak/nova,takeshineshiro/nova,noironetworks/nova,alaski/nova,nikesh-mahalka/nova,devendermishrajio/nova,Juniper/nova,barnsnake351/nova,CEG-FYP-OpenStack/scheduler,ted-gould/nova,nikesh-mahalka/nova,MountainWei/nova,noironetworks/nova,zhimin711/nova,j-carpentier/nova,mahak/nova,gooddata/openstack-nova,rahulunair/nova,sebrandon1/nova,JianyuWang/nova,cyx1231st/nova,Francis-Liu/animated-broccoli,gooddata/openstack-nova,Juniper/nova,openstack/nova,CEG-FYP-OpenStack/scheduler,Francis-Liu/animated-broccoli,rajalokan/nova,klmitch/nova,jianghuaw/nova,vmturbo/nova,cloudbase/nova,BeyondTheClouds/nova,zhimin711/nova,isyippee/nova,fnordahl/nova,sebrandon1/nova,cyx1231st/nova,openstack/nova,watonyweng/nova,felixma/nova,alaski/nova,j-carpentier/nova,JianyuWang/nova,mmnelemane/nova,isyippee/nova,rahulunair/nova,cloudbase/nova,iuliat/nova,zzicewind/nova,vmturbo/nova,MountainWei/nova,mmnelemane/nova,barnsnake351/nova,hanlind/nova