common: remove type_to_string files altogther.

This means including <common/utils.h> where it was indirectly included.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

common/json_stream.c

@@ -20,7 +20,6 @@
 #include <common/json_parse.h>
 #include <common/json_stream.h>
 #include <common/node_id.h>
-#include <common/type_to_string.h>
 #include <common/wireaddr.h>
 #include <inttypes.h>
 #include <stdio.h>