Always pass params to resolved target

Altorouter seems to always populate the params key in its response to `match` so we would never fall into the `else` block.

Have refactored to make the code simpler and more consistent.

Author: joelambert

src/Router.php

@@ -104,12 +104,8 @@ public function match(Request $request)
         }
 
         // Call the target with any resolved params
-        if (isset($altoRoute['params'])) {
-            $params = new RouteParams($altoRoute['params']);
-            $returnValue = call_user_func($altoRoute['target'], $params);
-        } else {
-            $returnValue = call_user_func($altoRoute['target']);
-        }
+        $params = new RouteParams($altoRoute['params']);
+        $returnValue = call_user_func($altoRoute['target'], $params);
 
         // Ensure that we return an instance of a Response object
         if (!($returnValue instanceof Response)) {