MEDIUM: stats: delay appctx initialization

Now that the session handler can automatically initialize the appctx,
let's not do it in stats_accept() anymore.
diff --git a/include/proto/dumpstats.h b/include/proto/dumpstats.h
index e488a5e..fd345d5 100644
--- a/include/proto/dumpstats.h
+++ b/include/proto/dumpstats.h
@@ -39,7 +39,7 @@
 #define STATS_TYPE_SO  3
 
 /* unix stats socket states */
-#define STAT_CLI_INIT   0   /* initial state */
+#define STAT_CLI_INIT   0   /* initial state, must leave to zero ! */
 #define STAT_CLI_END    1   /* final state, let's close */
 #define STAT_CLI_GETREQ 2   /* wait for a request */
 #define STAT_CLI_OUTPUT 3   /* all states after this one are responses */
diff --git a/src/dumpstats.c b/src/dumpstats.c
index 1b6fe3d..6cc2bcd 100644
--- a/src/dumpstats.c
+++ b/src/dumpstats.c
@@ -156,14 +156,8 @@
  */
 static int stats_accept(struct session *s)
 {
-	struct appctx *appctx;
-
 	s->target = &cli_applet.obj_type;
-	appctx = stream_int_register_handler(&s->si[1], objt_applet(s->target));
-	if (!appctx)
-		return -1;
-	appctx->st1 = 0;
-	appctx->st0 = STAT_CLI_INIT;
+	/* no need to initialize the applet, it will start with st0=st1 = 0 */
 
 	tv_zero(&s->logs.tv_request);
 	s->logs.t_queue = 0;