mbox: drop unnecessary imports

These are not necessary, anymore

diff --git a/lib/PublicInbox/Mbox.pm b/lib/PublicInbox/Mbox.pm
index cb9d65d1a9fb069b498ee4fe2161824aebb6fe51..fcb266939e1707e39d3e82b70751cd3e600793a2 100644 (file)
--- a/lib/PublicInbox/Mbox.pm
+++ b/lib/PublicInbox/Mbox.pm
@@ -4,8 +4,7 @@
 package PublicInbox::Mbox;
 use strict;
 use warnings;
-use PublicInbox::MID qw/mid_clean mid_compressed mid2path/;
-use Fcntl qw(SEEK_SET);
+use PublicInbox::MID qw/mid_compressed mid2path/;
 
 sub thread_mbox {
        my ($ctx, $srch) = @_;