app-containers/lxc: remove unused patch

Signed-off-by: Michael Mair-Keimberger <mm1ke@gentoo.org>

app-containers/lxc/files/lxc-6.0.4-start-Re-introduce-first-SET_DUMPABLE-call.patch

@@ -1,34 +0,0 @@
-From 2663712e8fa8f37e0bb873185e2d4526dc644764 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?St=C3=A9phane=20Graber?= <stgraber@stgraber.org>
-Date: Sat, 5 Apr 2025 01:11:18 -0400
-Subject: [PATCH] start: Re-introduce first SET_DUMPABLE call
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Without it, we're running into issues with complex hooks like nvidia.
-
-Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
----
- src/lxc/start.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/src/lxc/start.c b/src/lxc/start.c
-index f28bceaba..ee4bf4003 100644
---- a/src/lxc/start.c
-+++ b/src/lxc/start.c
-@@ -1125,6 +1125,11 @@ static int do_start(void *data)
- 		if (!lxc_switch_uid_gid(nsuid, nsgid))
- 			goto out_warn_father;
- 
-+		ret = prctl(PR_SET_DUMPABLE, prctl_arg(1), prctl_arg(0),
-+			    prctl_arg(0), prctl_arg(0));
-+		if (ret < 0)
-+			goto out_warn_father;
-+
- 		/* set{g,u}id() clears deathsignal */
- 		ret = lxc_set_death_signal(SIGKILL, handler->monitor_pid, status_fd);
- 		if (ret < 0) {
--- 
-2.48.1
-