[monitoring-plugins] check_dns: Remove unused variable

[RincewindsHat]

 Module: monitoring-plugins
 Branch: master
 Commit: 4f4fb3d9afa1c45f3d1774c151af9b921d7d430d
 Author: RincewindsHat <12514511+RincewindsHat at users.noreply.github.com>
   Date: Thu Nov 23 00:12:49 2023 +0100
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=4f4fb3d

check_dns: Remove unused variable

---

 plugins/check_dns.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/plugins/check_dns.c b/plugins/check_dns.c
index 5e20214..468bc95 100644
--- a/plugins/check_dns.c
+++ b/plugins/check_dns.c
@@ -87,7 +87,6 @@ main (int argc, char **argv)
   struct timeval tv;
   bool parse_address = false; /* This flag scans for Address: but only after Name: */
   output chld_out, chld_err;
-  size_t i;
   bool is_nxdomain = false;
 
   setlocale (LC_ALL, "");