Doc: Remove incorrect run_tests.sh documentation
Doc: Remove incorrect run_tests.sh documentation

run_test.sh don't accept --nologcapture , so we'd better remove
the relevant statement.

Change-Id: Id6289972c0bfa3d42e92c7ffd8457427b38a81fe

Hybrid-Cloud/cinder,NetApp/cinder,NetApp/cinder,bswartz/cinder,mahak/cinder,Datera/cinder,eharney/cinder,mahak/cinder,Hybrid-Cloud/cinder,phenoxim/cinder,bswartz/cinder,j-griffith/cinder,Nexenta/cinder,ge0rgi/cinder,cloudbase/cinder,openstack/cinder,Nexenta/cinder,openstack/cinder,phenoxim/cinder,cloudbase/cinder,eharney/cinder,j-griffith/cinder,Datera/cinder