[librsvg] librsvg_crate/tests: allow unused test utility functions, to avoid warnings

[Federico Mena Quintero <federico src gnome org>]

commit 163334c9778848094b0ce0800d873991341a9ba7
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Aug 1 11:16:04 2019 -0500

    librsvg_crate/tests: allow unused test utility functions, to avoid warnings

 librsvg_crate/tests/utils/mod.rs | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/librsvg_crate/tests/utils/mod.rs b/librsvg_crate/tests/utils/mod.rs
index f54a0ab8..f188a3f3 100644
--- a/librsvg_crate/tests/utils/mod.rs
+++ b/librsvg_crate/tests/utils/mod.rs
@@ -1,3 +1,4 @@
+#![allow(unused)]
 use cairo;
 use gio;
 use glib;