package/conmon: fix libseccomp shared build

Drop patch and disable libseccomp when building statically to avoid the
following build failure raised since commit
29834d8a12d984e8efe05398c5aaa6a61f7880e0:

src/seccomp_notify.c: In function 'seccomp_notify_plugins_load':
src/seccomp_notify.c:136:42: warning: implicit declaration of function 'dlopen'; did you mean 'popen'? [-Wimplicit-function-declaration]
  136 |                 ctx->plugins[s].handle = dlopen(it, RTLD_NOW);
      |                                          ^~~~~~
      |                                          popen
src/seccomp_notify.c:136:53: error: 'RTLD_NOW' undeclared (first use in this function)
  136 |                 ctx->plugins[s].handle = dlopen(it, RTLD_NOW);
      |                                                     ^~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/13d3b46990720bba8621c922b5dce54ab650e96d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 8144dd1b4cca2d5c89e329b0497f49f512c9caed)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/conmon/0001-remove-unused-dlfcn.h-header-file.patch

@@ -1,26 +0,0 @@
-From e28634a0e847a14c58482f962bc9b1d69937387f Mon Sep 17 00:00:00 2001
-From: Waldemar Brodkorb <wbx@openadk.org>
-Date: Sat, 12 Aug 2023 12:53:37 +0200
-Subject: [PATCH] remove unused dlfcn.h header file
-
-Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
-Upstream: https://github.com/containers/conmon/issues/443
----
- src/seccomp_notify.c | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/src/seccomp_notify.c b/src/seccomp_notify.c
-index 8d34d9d..2a8371d 100644
---- a/src/seccomp_notify.c
-+++ b/src/seccomp_notify.c
-@@ -7,7 +7,6 @@
- 
- #include <errno.h>
- #include <sys/ioctl.h>
--#include <dlfcn.h>
- #include <sys/wait.h>
- #include <sys/mount.h>
- #include <signal.h>
--- 
-2.39.2
-

package/conmon/conmon.mk

@@ -11,7 +11,7 @@ CONMON_LICENSE_FILES = LICENSE
 
 CONMON_DEPENDENCIES = host-pkgconf libglib2
 
-ifeq ($(BR2_PACKAGE_LIBSECCOMP),y)
+ifeq ($(BR2_PACKAGE_LIBSECCOMP):$(BR2_STATIC_LIBS),y:)
 CONMON_DISABLE_SECCOMP = 0
 CONMON_DEPENDENCIES += libseccomp
 else