--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -312,86 +312,6 @@ printf("\nstate: %d, pos: %x, end: %x, c
     }
 }
 
-#if 0
-int ngx_read_http_response_line(ngx_http_request_t *r)
-{
-    char   c, ch;
-    char  *p;
-    enum  {
-        sw_start = 0,
-        sw_done
-    } state;
-
-    state = r->state;
-    p = r->header_in->pos.mem;
-
-    while (p < r->header_in->last.mem && state < sw_done) {
-        ch = *p++;
-
-/*
-printf("\nstate: %d, pos: %x, end: %x, char: '%c' buf: %s",
-       state, p, r->header_in->last, ch, p);
-*/
-
-        switch (state) {
-
-        /* "HTTP/" */
-        case sw_start:
-            if (p + 3 >= r->header_in->last.mem)
-                return NGX_AGAIN;
-
-            if (ch != 'H' || *p != 'T' || *(p + 1) != 'T' || *(p + 2) != 'P'
-                          || *(p + 3) != '/')
-                return NGX_HTTP_PARSE_NO_HEADER;
-
-            p += 4;
-            state = sw_first_major_digit;
-            break;
-
-        /* first digit of major HTTP version */
-        case sw_first_major_digit:
-            if (ch < '1' || ch > '9')
-                return NGX_HTTP_PARSE_NO_HEADER;
-
-            state = sw_major_digit;
-            break;
-
-        /* major HTTP version or dot */
-        case sw_major_digit:
-            if (ch == '.') {
-                state = sw_first_minor_digit;
-                break;
-            }
-
-            if (ch < '0' || ch > '9')
-                return NGX_HTTP_PARSE_NO_HEADER;
-
-            break;
-
-        /* first digit of minor HTTP version */
-        case sw_first_minor_digit:
-            if (ch < '0' || ch > '9')
-                return NGX_HTTP_PARSE_NO_HEADER;
-
-            state = sw_minor_digit;
-            break;
-
-        /* minor HTTP version or end of request line */
-        case sw_minor_digit:
-            if (ch == ' ') {
-                state = sw_code;
-                break;
-            }
-
-            if (ch < '0' || ch > '9')
-                return NGX_HTTP_PARSE_NO_HEADER;
-
-            break;
-        }
-    }
-}
-#endif
-
 int ngx_read_http_header_line(ngx_http_request_t *r)
 {
     char   c, ch;