[libgnome-games-support] Fix unused variable warning

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 406695a2bd14436cb7ff10001865db9d1c236fad
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Fri Oct 29 12:05:24 2021 -0500

    Fix unused variable warning

 tests/test-scores.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/test-scores.vala b/tests/test-scores.vala
index 020d373..dc7b392 100644
--- a/tests/test-scores.vala
+++ b/tests/test-scores.vala
@@ -254,7 +254,7 @@ private void test_import_from_history_file ()
 
 private void test_import_from_nonexistent_history_file ()
 {
-    var context = new Context.with_importer (
+    new Context.with_importer (
         "libgnome-games-support-test",
         "",
         null,