net-firewall/ipset: remove unused patch

Signed-off-by: Michael Mair-Keimberger <mmk@levelnine.at>
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>

net-firewall/ipset/files/ipset-7.16-bashism.patch

@@ -1,46 +0,0 @@
-From 6004475ff78ddb3afd8beadcb5330664d50081f5 Mon Sep 17 00:00:00 2001
-From: Sam James <sam@gentoo.org>
-Date: Thu, 24 Nov 2022 04:38:28 +0000
-Subject: [PATCH] configure.ac: fix bashisms
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-configure scripts need to be runnable with a POSIX-compliant /bin/sh.
-
-On many (but not all!) systems, /bin/sh is provided by Bash, so errors
-like this aren't spotted. Notably Debian defaults to /bin/sh provided
-by dash which doesn't tolerate such bashisms as '=='.
-
-This retains compatibility with bash.
-
-Signed-off-by: Sam James <sam@gentoo.org>
---- a/configure.ac
-+++ b/configure.ac
-@@ -27,7 +27,7 @@ AC_ARG_WITH([kmod],
-                            [Build the kernel module (default: yes)]),
-             [BUILDKMOD="$withval";],
-             [BUILDKMOD="yes";])
--AM_CONDITIONAL(WITH_KMOD, test "$BUILDKMOD" == "yes")
-+AM_CONDITIONAL(WITH_KMOD, test "$BUILDKMOD" = "yes")
- 
- dnl Additional arguments
- dnl Kernel build directory or source tree
-@@ -76,7 +76,7 @@ if test "x$enable_bashcompl" = "xyes"; then
- 	AC_SUBST(bashcompdir)
- fi
- 
--if test "$BUILDKMOD" == "yes"
-+if test "$BUILDKMOD" = "yes"
- then
- dnl Sigh: check kernel version dependencies
- if test "$KBUILDDIR" != ""
-@@ -204,7 +204,7 @@ AC_CHECK_TYPES([union nf_inet_addr],,,[#include <linux/types.h>
- dnl Checks for functions
- AC_CHECK_FUNCS(gethostbyname2)
- 
--if test "$BUILDKMOD" == "yes"
-+if test "$BUILDKMOD" = "yes"
- then
- dnl Check kernel incompatibilities... Ugly like hell
-