plugins: out_azure_kusto: removed deprecated header

Signed-off-by: Leonardo Alminana <[email protected]>

Author: Leonardo Alminana

plugins/out_azure_kusto/azure_kusto_ingest.c

@@ -25,7 +25,6 @@
 #include <fluent-bit/flb_utils.h>
 
 #include <math.h>
-#include <mbedtls/base64.h>
 #include <msgpack.h>
 
 #include "azure_kusto_ingest.h"