[nginx] Removed dead code from ngx_http_set_keepalive().

[Ruslan Ermilov]

details:   https://hg.nginx.org/nginx/rev/ed17a2a95c8d
branches:  
changeset: 7737:ed17a2a95c8d
user:      Ruslan Ermilov <ru at nginx.com>
date:      Fri Nov 06 23:44:47 2020 +0300
description:
Removed dead code from ngx_http_set_keepalive().

The code removed became dead after 98f03cd8d6cc (0.8.14),
circa when the request reference counting was introduced.

diffstat:

 src/http/ngx_http_request.c |  7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diffs (17 lines):

diff -r a46fcf101cfc -r ed17a2a95c8d src/http/ngx_http_request.c
--- a/src/http/ngx_http_request.c	Wed Oct 28 10:56:11 2020 +0300
+++ b/src/http/ngx_http_request.c	Fri Nov 06 23:44:47 2020 +0300
@@ -3039,13 +3039,6 @@ ngx_http_set_keepalive(ngx_http_request_
 
     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
 
-    if (r->discard_body) {
-        r->write_event_handler = ngx_http_request_empty_handler;
-        r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
-        ngx_add_timer(rev, clcf->lingering_timeout);
-        return;
-    }
-
     c->log->action = "closing request";
 
     hc = r->http_connection;