--- a/auto/sources
+++ b/auto/sources
@@ -120,7 +120,6 @@ AIO_SRCS="src/event/modules/ngx_aio_modu
 UNIX_INCS="$CORE_INCS $EVENT_INCS src/os/unix"
 
 UNIX_DEPS="$CORE_DEPS $EVENT_DEPS \
-            src/core/ngx_unix_domain.h \
             src/os/unix/ngx_time.h \
             src/os/unix/ngx_types.h \
             src/os/unix/ngx_errno.h \
@@ -149,7 +148,6 @@ UNIX_DEPS="$CORE_DEPS $EVENT_DEPS \
 
 
 UNIX_SRCS="$CORE_SRCS $EVENT_SRCS \
-            src/core/ngx_unix_domain.c \
             src/os/unix/ngx_time.c \
             src/os/unix/ngx_errno.c \
             src/os/unix/ngx_alloc.c \

--- a/src/core/ngx_core.h
+++ b/src/core/ngx_core.h
@@ -68,9 +68,6 @@ typedef void (*ngx_connection_handler_pt
 #include <ngx_event_openssl.h>
 #endif
 #include <ngx_inet.h>
-#if (NGX_HAVE_UNIX_DOMAIN)
-#include <ngx_unix_domain.h>
-#endif
 #include <ngx_cycle.h>
 #include <ngx_process_cycle.h>
 #include <ngx_conf_file.h>

deleted file mode 100644
--- a/src/core/ngx_unix_domain.c
+++ /dev/null
@@ -1,79 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_event.h>
-#include <ngx_event_connect.h>
-
-
-/* Solaris has predefined "#define sun 1" */
-#undef sun
-
-
-ngx_peers_t *
-ngx_unix_upstream_parse(ngx_conf_t *cf, ngx_unix_domain_upstream_t *u)
-{
-    size_t               len;
-    ngx_uint_t           i;
-    ngx_peers_t         *peers;
-    struct sockaddr_un  *sun;
-
-    len = u->url.len - 5;
-
-    if (u->uri_part) {
-        for (i = 5; i < u->url.len; i++) {
-            if (u->url.data[i] == ':') {
-                len = i - 5;
-                u->uri.len = u->url.len - 5 - len - 1;
-                u->uri.data = u->url.data + 5 + len + 1;
-
-                break;
-            }
-        }
-    }
-
-    if (len == 0) {
-        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                           "the unix domain socket \"%V\" has no path",
-                           &u->name);
-        return NULL;
-    }
-
-    if (len + 1 > sizeof(sun->sun_path)) {
-        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                           "the unix domain socket path \"%V\" is too long",
-                           &u->name);
-        return NULL;
-    }
-
-    /* MP: ngx_shared_palloc() */
-
-    peers = ngx_pcalloc(cf->pool, sizeof(ngx_peers_t));
-    if (peers == NULL) {
-        return NULL;
-    }
-
-    sun = ngx_pcalloc(cf->pool, sizeof(struct sockaddr_un));
-    if (sun == NULL) {
-        return NULL;
-    }
-
-    peers->number = 1;
-
-    sun->sun_family = AF_UNIX;
-    (void) ngx_cpystrn((u_char *) sun->sun_path, u->url.data + 5, len + 1);
-
-    peers->peer[0].sockaddr = (struct sockaddr *) sun;
-    peers->peer[0].socklen = sizeof(struct sockaddr_un);
-
-    peers->peer[0].name.len = 5 + len;
-    peers->peer[0].name.data = u->url.data;
-
-    peers->peer[0].uri_separator = ":";
-
-    return peers;
-}

deleted file mode 100644
--- a/src/core/ngx_unix_domain.h
+++ /dev/null
@@ -1,29 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- */
-
-
-#ifndef _NGX_UNIX_DOMAIN_H_INCLUDED_
-#define _NGX_UNIX_DOMAIN_H_INCLUDED_
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-
-
-typedef struct {
-    ngx_str_t     name;           /* "schema:unix:path:/uri" */
-    ngx_str_t     url;            /* "unix:path:/uri" */
-    ngx_str_t     uri;
-
-    ngx_uint_t    uri_part;       /* unsigned  uri_part:1; */
-} ngx_unix_domain_upstream_t;
-
-
-ngx_peers_t *ngx_unix_upstream_parse(ngx_conf_t *cf,
-                                     ngx_unix_domain_upstream_t *u);
-
-
-#endif /* _NGX_UNIX_DOMAIN_H_INCLUDED_ */
-