searchview: drop unused {seen} hashref

Unused since commit 5f09452bb7e6cf49fb6eb7e6cf166a7c3cdc5433
("view: cull redundant phrases in subjects")

diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index e47dcfd032cafcab860b8e701245da61eb511731..c33caec905e1cfe96475d5f7a55e37d74a976f42 100644 (file)
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -240,7 +240,6 @@ sub mset_thread {
        $ctx->{pct} = \%pct;
        $ctx->{prev_attr} = '';
        $ctx->{prev_level} = 0;
-       $ctx->{seen} = {};
        $ctx->{s_nr} = scalar(@$msgs).'+ results';
 
        # reduce hash lookups in skel_dump