./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=25499
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 tools/bpf/bpftool/sign.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/bpf/bpftool/sign.c b/tools/bpf/bpftool/sign.c
index b29d825bb1d4..b34f74d210e9 100644
--- 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>
-- 
2.43.5