Fix: Remove arpa/inet.h from test_nat_stress.c and test_nat_transport.c, use platform_compat.h for byte-order funcs

tests/test_nat_stress.c

@@ -9,7 +9,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <arpa/inet.h>
 #include <sys/time.h>
 #include "../lib/debug_config.h"
 #include "../src/eim_nat.h"

tests/test_nat_transport.c

@@ -14,7 +14,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <arpa/inet.h>
 #include "test_utils.h"
 #include "../src/etcp.h"
 #include "../src/etcp_connections.h"