remove wrong instruction to destroy pool when it does not exists

src/ngx_http_push_stream_module_websocket.c

@@ -260,7 +260,6 @@ ngx_http_push_stream_websocket_reading(ngx_http_request_t *r)
         if ((temp_pool = ngx_create_pool(4096, r->connection->log)) == NULL) {
             ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "push stream module: unable to allocate memory for temporary pool");
             ngx_http_finalize_request(r, NGX_OK);
-            ngx_destroy_pool(temp_pool);
             return;
         }