t/git: avoid "once" warning for async_warn

No point in testing use_ok when we have no outside dependencies
nor exports in this case.

1 files changed, 1 insertions, 2 deletions

diff --git a/t/git.t b/t/git.t
index 8a020211..fa541f41 100644
--- a/t/git.t
+++ b/t/git.t
@@ -6,8 +6,7 @@ use PublicInbox::TestCommon;
 my ($dir, $for_destroy) = tmpdir();
 use PublicInbox::Import;
 use POSIX qw(strftime);
-
-use_ok 'PublicInbox::Git';
+use PublicInbox::Git;
 
 {
         PublicInbox::Import::init_bare($dir);