out_azure_kusto: avoid logging workload identity token

Signed-off-by: admhn <61081143+admhn@users.noreply.github.com>

Impacted by AI (Agent mode: copilot | Prompts: 14 | Tokens: gpt-5.6-terra: 6266k in/90k out (5703k cached) +67k reasoning | gpt-4o-mini-2024-07-18: 7k in/234 out)

Author: admhn

plugins/out_azure_kusto/azure_msiauth.c

@@ -162,8 +162,6 @@ int flb_azure_workload_identity_token_get(struct flb_oauth2 *ctx, const char *to
         return -1;
     }
 
-    flb_info("[azure workload identity] after read token from file %s", federated_token);
-
     /* Build the form data for token exchange *before* creating the client */
     body = flb_sds_create_size(4096);
     if (!body) {
@@ -249,8 +247,8 @@ int flb_azure_workload_identity_token_get(struct flb_oauth2 *ctx, const char *to
     /* c->body_buf = body; */
     /* c->body_len = flb_sds_len(body); */
 
-    /* Add a debug log to verify the body content just before sending */
-    flb_debug("[azure workload identity] Sending request body (len=%zu): %s", flb_sds_len(body), body);
+    flb_debug("[azure workload identity] Sending request body (len=%zu)",
+              flb_sds_len(body));
 
     /* Issue request */
     ret = flb_http_do(c, &b_sent);