revert #52510 which added a unneeded function call (#52526)

Author: rodrigopedra

src/Illuminate/Support/helpers.php

@@ -475,7 +475,7 @@ function transform($value, callable $callback, $default = null)
             return $default($value);
         }
 
-        return value($default);
+        return $default;
     }
 }