Revert "Rollback SPDY module and SSL config (TLSv1, TLSv1.1)"

This reverts commit 33cd571e41.

src/http/ngx_http_core_module.c

@@ -1940,13 +1940,6 @@ ngx_http_gzip_ok(ngx_http_request_t *r)
         return NGX_DECLINED;
     }
 
-#if (NGX_HTTP_SPDY)
-    if (r->spdy_stream) {
-        r->gzip_ok = 1;
-        return NGX_OK;
-    }
-#endif
-
     ae = r->headers_in.accept_encoding;
     if (ae == NULL) {
         return NGX_DECLINED;
@@ -2304,9 +2297,6 @@ ngx_http_subrequest(ngx_http_request_t *r,
 #if (NGX_HTTP_V2)
     sr->stream = r->stream;
 #endif
-#if (NGX_HTTP_SPDY)
-    sr->spdy_stream = r->spdy_stream;
-#endif
 
     sr->method = NGX_HTTP_GET;
     sr->http_version = r->http_version;
@@ -4000,15 +3990,11 @@ ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         }
 
         if (ngx_strcmp(value[n].data, "spdy") == 0) {
-#if (NGX_HTTP_SPDY)
-            lsopt.spdy = 1;
+            ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
+                               "invalid parameter \"spdy\": "
+                               "ngx_http_spdy_module was superseded "
+                               "by ngx_http_v2_module");
             continue;
-#else
-            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                               "the \"spdy\" parameter requires "
-                               "ngx_http_spdy_module");
-            return NGX_CONF_ERROR;
-#endif
         }
 
         if (ngx_strncmp(value[n].data, "so_keepalive=", 13) == 0) {