Fix push_display_name_rename schema update

synapse/storage/schema/delta/34/push_display_name_rename.sql

@@ -13,5 +13,8 @@
  * limitations under the License.
  */
 
+DELETE FROM push_rules WHERE rule_id = 'global/override/.m.rule.contains_display_name';
 UPDATE push_rules SET rule_id = 'global/override/.m.rule.contains_display_name' WHERE rule_id = 'global/underride/.m.rule.contains_display_name';
+
+DELETE FROM push_rules_enable WHERE rule_id = 'global/override/.m.rule.contains_display_name';
 UPDATE push_rules_enable SET rule_id = 'global/override/.m.rule.contains_display_name' WHERE rule_id = 'global/underride/.m.rule.contains_display_name';