remove redundant array_values call (#53814)

we are already looping over the array, so there's need to build an array of the values.

src/Illuminate/Database/Eloquent/Concerns/HasEvents.php

@@ -390,7 +390,7 @@ public static function flushEventListeners()
             static::$dispatcher->forget("eloquent.{$event}: ".static::class);
         }
 
-        foreach (array_values($instance->dispatchesEvents) as $event) {
+        foreach ($instance->dispatchesEvents as $event) {
             static::$dispatcher->forget($event);
         }
     }