[PATCH 4/5] git: remove ->commit_title method

[Eric Wong <e@yhbt.net>]

We haven't used it in SolverGit, yet, and I'll be reworking it
to work with ->cat_async, instead.
---
 lib/PublicInbox/Git.pm | 7 -------
 t/solver_git.t         | 6 ------
 2 files changed, 13 deletions(-)

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 9d0f660b..f3b7a0a0 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -332,13 +332,6 @@ sub cat_async ($$$;$) {
 	push(@$inflight, [ $cb, $arg ]);
 }
 
-sub commit_title ($$) {
-	my ($self, $oid) = @_; # PublicInbox::Git, $sha1hex
-	my $buf = cat_file($self, $oid) or return;
-	utf8::decode($$buf);
-	($$buf =~ /\r?\n\r?\n([^\r\n]+)\r?\n?/)[0]
-}
-
 sub extract_cmt_time {
 	my ($bref, undef, undef, undef, $modified) = @_;
 
diff --git a/t/solver_git.t b/t/solver_git.t
index 7c5619a7..67ae02e6 100644
--- a/t/solver_git.t
+++ b/t/solver_git.t
@@ -38,12 +38,6 @@ $deliver_patch->('t/solve/0001-simple-mod.patch');
 my $v1_0_0_tag = 'cb7c42b1e15577ed2215356a2bf925aef59cdd8d';
 
 my $git = PublicInbox::Git->new($git_dir);
-is('public-inbox 1.0.0',
-	$git->commit_title($v1_0_0_tag),
-	'commit_title works on 1.0.0');
-
-is(undef, $git->commit_title('impossible'), 'undef on impossible object');
-
 $ibx->{-repo_objs} = [ $git ];
 my $res;
 my $solver = PublicInbox::SolverGit->new($ibx, sub { $res = $_[0] });