bpftool: Remove duplicate string.h header

./tools/bpf/bpftool/sign.c: string.h is included more than once.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=25502
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Acked-by: Quentin Monnet <qmo@kernel.org>
Link: https://lore.kernel.org/r/20250926095240.3397539-2-jiapeng.chong@linux.alibaba.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/bpf/bpftool/sign.c b/tools/bpf/bpftool/sign.c
index b29d825bb1d418a8bf3b49ee785c4bb64355f0e9..b34f74d210e9cd3fa9dc82f30be2f63561a0adb7 100644 (file)
--- a/tools/bpf/bpftool/sign.c
+++ b/tools/bpf/bpftool/sign.c
@@ -11,7 +11,6 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <string.h>
-#include <string.h>
 #include <getopt.h>
 #include <err.h>
 #include <openssl/opensslv.h>