feed: remove unnecessary use

We no longer use DateTime::Format::Mail.

diff --git a/lib/PublicInbox/Feed.pm b/lib/PublicInbox/Feed.pm
index c97a3da839d4457d560683f784cdc913cfa9c44a..5daaf6d96ed0a1b4c5f02b0683bfe7672a1da9d4 100644 (file)
--- a/lib/PublicInbox/Feed.pm
+++ b/lib/PublicInbox/Feed.pm
@@ -9,7 +9,6 @@ use Email::Address;
 use URI::Escape qw/uri_escape/;
 use Encode qw/encode decode/;
 use Encode::MIME::Header;
-use DateTime::Format::Mail;
 use CGI qw(escapeHTML);
 use POSIX qw(strftime);
 use Date::Parse qw(strptime);