proc: do not cancel script killing after writing headers

Before this change if the cgi script hangs after writing headers
then the process will never be killed. Let's only cancel the timeout
if the process ends.

Signed-off-by: Santiago Piccinini <spiccinini@altermundi.net>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

proc.c

@@ -225,11 +225,9 @@ static void proc_handle_header(struct relay *r, const char *name, const char *va
 static void proc_handle_header_end(struct relay *r)
 {
 	struct client *cl = r->cl;
-	struct dispatch_proc *p = &cl->dispatch.proc;
 	struct blob_attr *cur;
 	int rem;
 
-	uloop_timeout_cancel(&p->timeout);
 	uh_http_header(cl, cl->dispatch.proc.status_code, cl->dispatch.proc.status_msg);
 	blob_for_each_attr(cur, cl->dispatch.proc.hdr.head, rem)
 		ustream_printf(cl->us, "%s: %s\r\n", blobmsg_name(cur),