Tests fail on my workstation with netcat 110, instead of debugging+more workarounds just remove this. Tests will fall back to bash or socat. Signed-off-by: Florian Westphal <fw@strlen.de> Link: https://lore.kernel.org/r/20240423130604.7013-3-fw@strlen.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>