Remove unnecessary ldap import
Remove unnecessary ldap import

Since ldap.filter is imported, there is no need to also import ldap.

Change-Id: I9e56a2d3d58c425b9655507263f7d453fab2c568

jamielennox/keystone,jonnary/keystone,dims/keystone,rushiagr/keystone,idjaw/keystone,maestro-hybrid-cloud/keystone,nuxeh/keystone,jonnary/keystone,UTSA-ICS/keystone-kerberos,cernops/keystone,dstanek/keystone,openstack/keystone,jumpstarter-io/keystone,takeshineshiro/keystone,idjaw/keystone,himanshu-setia/keystone,rushiagr/keystone,rajalokan/keystone,rajalokan/keystone,UTSA-ICS/keystone-kerberos,takeshineshiro/keystone,himanshu-setia/keystone,openstack/keystone,blueboxgroup/keystone,jumpstarter-io/keystone,ilay09/keystone,klmitch/keystone,MaheshIBM/keystone,openstack/keystone,maestro-hybrid-cloud/keystone,jamielennox/keystone,ilay09/keystone,dstanek/keystone,ajayaa/keystone,ilay09/keystone,promptworks/keystone,mahak/keystone,roopali8/keystone,roopali8/keystone,mahak/keystone,nuxeh/keystone,dstanek/keystone,dims/keystone,rajalokan/keystone,ajayaa/keystone,vivekdhayaal/keystone,jumpstarter-io/keystone,cernops/keystone,promptworks/keystone,nuxeh/keystone,rushiagr/keystone,promptworks/keystone,klmitch/keystone,vivekdhayaal/keystone,mahak/keystone,MaheshIBM/keystone,blueboxgroup/keystone,vivekdhayaal/keystone