[MAJOR] ported the captures to use the new mempool v2

The "capture.c" file has also been removed since it was empty.
diff --git a/src/haproxy.c b/src/haproxy.c
index ed26a54..3442389 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -666,7 +666,7 @@
 	pool_destroy2(pool2_buffer);
 	pool_destroy2(pool2_requri);
 	pool_destroy2(pool2_task);
-	pool_destroy(pool_capture);
+	pool_destroy2(pool2_capture);
 	pool_destroy2(pool2_appsess);
 	pool_destroy2(pool2_pendconn);