Avoid declaring unnecessary variable

Author: pablomartinezbernardo

src/Integrations/Integrations/Slim/SlimIntegration.php

@@ -90,14 +90,13 @@ function ($errorMiddleware, $self, $args) use ($rootSpan, $integration) {
                         'Slim\\Router',
                         'lookupRoute',
                         null,
+                        /** @var \Slim\Interfaces\RouteInterface $return */
                         function ($router, $scope, $args, $return) use ($rootSpan) {
-                            /** @var \Slim\Interfaces\RouteInterface $route */
-                            $route = $return;
-                            $rootSpan->meta[Tag::HTTP_ROUTE] = $route->getPattern();
+                            $rootSpan->meta[Tag::HTTP_ROUTE] = $return->getPattern();
 
                             if (PHP_VERSION_ID < 70000 || dd_trace_env_config("DD_HTTP_SERVER_ROUTE_BASED_NAMING")) {
                                 $rootSpan->resource =
-                                    $_SERVER['REQUEST_METHOD'] . ' ' . ($route->getName() ?: $route->getPattern());
+                                    $_SERVER['REQUEST_METHOD'] . ' ' . ($return->getName() ?: $return->getPattern());
                             }
                         }
                     );