spawn: remove non-blocking support, here

It is never used, and inappropriate to support in generic code.

HTTPD::Async already sets non-blocking, and it's better to do it
in -httpd-specific code since we know our -httpd can handle it.

1 files changed, 0 insertions, 2 deletions

diff --git a/lib/PublicInbox/Spawn.pm b/lib/PublicInbox/Spawn.pm
index 41b08a33..e543be54 100644
--- a/lib/PublicInbox/Spawn.pm
+++ b/lib/PublicInbox/Spawn.pm
@@ -190,8 +190,6 @@ sub popen_rd {
         my ($cmd, $env, $opts) = @_;
         pipe(my ($r, $w)) or die "pipe: $!\n";
         $opts ||= {};
-        my $blocking = $opts->{Blocking};
-        IO::Handle::blocking($r, $blocking) if defined $blocking;
         $opts->{1} = fileno($w);
         my $pid = spawn($cmd, $env, $opts);
         return unless defined $pid;