httpd/async: switch to buffering-as-fast-as-possible

With DS buffering to a temporary file nowadays, applying
backpressure to git-http-backend(1) hurts overall memory
usage of the system.  Instead, try to get git-http-backend(1)
to finish as quickly as possible and use edge-triggered
notifications to reduce wakeups on our end.

1 files changed, 0 insertions, 6 deletions

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index b2f59983..a8236023 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -571,12 +571,6 @@ sub epwait ($$) {
     0;
 }
 
-sub watch ($$) {
-    my ($self, $ev) = @_;
-    my $sock = $self->{sock} or return;
-    epwait($sock, $ev);
-}
-
 # return true if complete, false if incomplete (or failure)
 sub accept_tls_step ($) {
     my ($self) = @_;