The variable fmt_name has been removed from DPDK 21.02-rc1.
Then some drivers were integrated in the same year with this variable.
Of course it has no effect, so it is cleaned up.
Fixes: 832a4cf1d1 ("compress/mlx5: introduce PMD")
Fixes: a7c86884f1 ("crypto/mlx5: introduce Mellanox crypto driver")
Fixes: 5e7596ba7c ("vdpa/sfc: introduce Xilinx vDPA driver")
Cc: stable@dpdk.org
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>