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-rw-r--r--lib/PublicInbox/Thread.pm7
1 files changed, 0 insertions, 7 deletions
diff --git a/lib/PublicInbox/Thread.pm b/lib/PublicInbox/Thread.pm
index a3dedf54..781fffff 100644
--- a/lib/PublicInbox/Thread.pm
+++ b/lib/PublicInbox/Thread.pm
@@ -17,13 +17,6 @@ if ($Mail::Thread::VERSION <= 2.55) {
         eval q(sub _container_class { 'PublicInbox::Thread::Container' });
 }
 
-sub sort_ts {
-        sort {
-                (eval { $a->topmost->message->header('X-PI-TS') } || 0) <=>
-                (eval { $b->topmost->message->header('X-PI-TS') } || 0)
-        } @_;
-}
-
 package PublicInbox::Thread::Container;
 use strict;
 use warnings;