in_kubernetes_events: remove unused dns struct members

Remove dns_retries and dns_wait_time struct members from k8s_events.
These fields were stored but never used by the plugin, making them
dead code that should not be exposed to users.

Signed-off-by: Eric D. Schabell <eric@schabell.org>

Author: eschabell

plugins/in_kubernetes_events/kubernetes_events.h

@@ -67,9 +67,6 @@ struct k8s_events {
     char *auth;
     size_t auth_len;
 
-    int dns_retries;
-    int dns_wait_time;
-
     struct flb_tls *tls;
 
     struct flb_log_event_encoder *encoder;