Clean up logging from glance_http.py
Clean up logging from glance_http.py

Currently the logging in the glance_http module is overly
verbose and doesn't add any extra useful information. This
commit condenses the logging and makes it analogous to the
logging in rest_client.py

Fixes bug 1089765

Change-Id: Ifa7038de27d979a60ff36b6e32b2cbe85541c231

manasi24/tempest,openstack/tempest,cisco-openstack/tempest,varunarya10/tempest,Mirantis/tempest,izadorozhna/tempest,Vaidyanath/tempest,eggmaster/tempest,bigswitch/tempest,citrix-openstack/build-tempest,flyingfish007/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,Juraci/tempest,vedujoshi/os_tempest,zsoltdudas/lis-tempest,izadorozhna/tempest,yamt/tempest,JioCloud/tempest,Tesora/tesora-tempest,xbezdick/tempest,vmahuli/tempest,armando-migliaccio/tempest,sebrandon1/tempest,ebagdasa/tempest,BeenzSyed/tempest,pandeyop/tempest,cisco-openstack/tempest,redhat-cip/tempest,vmahuli/tempest,alinbalutoiu/tempest,queria/my-tempest,flyingfish007/tempest,manasi24/tempest,redhat-cip/tempest,Juniper/tempest,sebrandon1/tempest,Juraci/tempest,vedujoshi/os_tempest,NexusIS/tempest,eggmaster/tempest,bigswitch/tempest,itskewpie/tempest,tonyli71/tempest,afaheem88/tempest,citrix-openstack-build/tempest,NexusIS/tempest,jaspreetw/tempest,rzarzynski/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,hpcloud-mon/tempest,hayderimran7/tempest,tudorvio/tempest,cloudbase/lis-tempest,rakeshmi/tempest,ntymtsiv/tempest,pandeyop/tempest,adkerr/tempest,nunogt/tempest,Lilywei123/tempest,neerja28/Tempest,manasi24/jiocloud-tempest-qatempest,Vaidyanath/tempest,afaheem88/tempest,ntymtsiv/tempest,CiscoSystems/tempest,ebagdasa/tempest,manasi24/jiocloud-tempest-qatempest,LIS/lis-tempest,BeenzSyed/tempest,Juniper/tempest,afaheem88/tempest_neutron,rzarzynski/tempest,jamielennox/tempest,akash1808/tempest,hpcloud-mon/tempest,itskewpie/tempest,Lilywei123/tempest,danielmellado/tempest,varunarya10/tempest,hayderimran7/tempest,Mirantis/tempest,rakeshmi/tempest,pczerkas/tempest,yamt/tempest,roopali8/tempest,openstack/tempest,citrix-openstack/build-tempest,dkalashnik/tempest,tonyli71/tempest,adkerr/tempest,dkalashnik/tempest,roopali8/tempest,masayukig/tempest,JioCloud/tempest,pczerkas/tempest,jaspreetw/tempest,zsoltdudas/lis-tempest,tudorvio/tempest,queria/my-tempest,armando-migliaccio/tempest,LIS/lis-tempest,danielmellado/tempest,cloudbase/lis-tempest,CiscoSystems/tempest,jamielennox/tempest,citrix-openstack-build/tempest,neerja28/Tempest,vedujoshi/tempest,xbezdick/tempest,masayukig/tempest,vedujoshi/tempest,akash1808/tempest,afaheem88/tempest_neutron,nunogt/tempest,alinbalutoiu/tempest,Tesora/tesora-tempest