Remove deprecated/obsolete ldap options

The devstack ldap configuration for keystone is still using some
old options that are no longer valid. The write support is
being removed this release. And in previous releases, the ldap
assignment driver support was removed and was not removed here.

Change-Id: I538626b681eaee6a7ac10dfbc29605b73fbe13bf
diff --git a/lib/keystone b/lib/keystone
index f9ee8eb..b2dfa83 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -221,13 +221,6 @@
         iniset $KEYSTONE_CONF ldap password $LDAP_PASSWORD
         iniset $KEYSTONE_CONF ldap user $LDAP_MANAGER_DN
         iniset $KEYSTONE_CONF ldap suffix $LDAP_BASE_DN
-        iniset $KEYSTONE_CONF ldap use_dumb_member "True"
-        iniset $KEYSTONE_CONF ldap user_attribute_ignore "enabled,email,tenants,default_project_id"
-        iniset $KEYSTONE_CONF ldap tenant_attribute_ignore "enabled"
-        iniset $KEYSTONE_CONF ldap tenant_domain_id_attribute "businessCategory"
-        iniset $KEYSTONE_CONF ldap tenant_desc_attribute "description"
-        iniset $KEYSTONE_CONF ldap tenant_tree_dn "ou=Projects,$LDAP_BASE_DN"
-        iniset $KEYSTONE_CONF ldap user_domain_id_attribute "businessCategory"
         iniset $KEYSTONE_CONF ldap user_tree_dn "ou=Users,$LDAP_BASE_DN"
         iniset $KEYSTONE_CONF DEFAULT member_role_id "9fe2ff9ee4384b1894a90878d3e92bab"
         iniset $KEYSTONE_CONF DEFAULT member_role_name "_member_"