remove unnecessary ->header_obj calls

We used ->header_obj in the past as an optimization with
Email::MIME.  That optimization is no longer necessary
with PublicInbox::Eml.

This doesn't make any functional difference even if we were to
go back to Email::MIME.  However, it reduces the amount of code
we have and slightly reduces allocations with PublicInbox::Eml.

1 files changed, 1 insertions, 1 deletions

diff --git a/script/public-inbox-mda b/script/public-inbox-mda
index 42d0e00c..02ca3431 100755
--- a/script/public-inbox-mda
+++ b/script/public-inbox-mda
@@ -119,7 +119,7 @@ for my $ibx (@$dests) {
                 # destination succeeds
                 $emm->abort;
         } else { # v1-only
-                my $mid = $mime->header_obj->header_raw('Message-ID');
+                my $mid = $mime->header_raw('Message-ID');
                 # this message is similar to what ssoma-mda shows:
                 print STDERR "CONFLICT: Message-ID: $mid exists\n";
         }