nntp: remove unused hdr_val subroutine

hdr_val has not been used since commit 1d236e649df1
("nntp: implement OVER/XOVER summary in search document")

diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm
index 8740377f63a86fca1625e2ba79895d20771ea457..c715e8f7bfcae11d4f5090fe646a2fc093316f20 100644 (file)
--- a/lib/PublicInbox/NNTP.pm
+++ b/lib/PublicInbox/NNTP.pm
@@ -533,16 +533,6 @@ sub get_range ($$) {
        [ $beg, $end ];
 }
 
-sub hdr_val ($$) {
-       my ($r, $header) = @_;
-       return $r->[3] if $header =~ /\A:?bytes\z/i;
-       return $r->[4] if $header =~ /\A:?lines\z/i;
-       $r = $r->[2]->header_obj->header($header);
-       defined $r or return;
-       $r =~ s/[\r\n\t]+/ /sg;
-       $r;
-}
-
 sub long_response ($$$$) {
        my ($self, $beg, $end, $cb) = @_;
        die "BUG: nested long response" if $self->{long_res};