remove unused static function, fix missing include for gcc.

src/kernel/order.c

@@ -560,12 +560,6 @@ void push_order(order ** ordp, order * ord)
     *ordp = ord;
 }
 
-static char *getcommand(const order * ord)
-{
-    char cmd[ORDERSIZE];
-    return _strdup(get_command(ord, cmd, sizeof(cmd)));
-}
-
 keyword_t init_order(const struct order *ord)
 {
     char *cmd = 0;

src/kernel/order.test.c

@@ -1,3 +1,4 @@
+#include <platform.h>
 #include <config.h>
 #include <kernel/config.h>
 #include "order.h"
@@ -7,6 +8,7 @@
 
 #include <CuTest.h>
 #include <stdlib.h>
+#include <string.h>
 
 static void test_create_order(CuTest *tc) {
     char cmd[32];