After https://review.openstack.org/#/c/565841 when using these Filters nova is not scheduling to the ironic nodes and overcloud deployment fails. Ram/Disk Filters are not required when using filter_scheduler. Since stable/queens doesn't have containerized undercloud, need to remove from instack-undercloud. Ram/Disk filters are deprecated in [1]. [1] https://review.opendev.org/#/c/596502/ Change-Id: I2515438c5ca80758be173523b0bf4c031b54706f Related-Bug: 1787910