ClosureDelegatingCallToFirstClassCallableRector

Convert closure with sole nested call to first class callable

-function ($parameter) {
-    return AnotherClass::someMethod($parameter);
-}
+AnotherClass::someMethod(...);

Configure your rector.php:

<?php

use Rector\CodingStyle\Rector\Closure\ClosureDelegatingCallToFirstClassCallableRector;
use Rector\Config\RectorConfig;

return RectorConfig::configure()
    ->withRules([
        ClosureDelegatingCallToFirstClassCallableRector::class,
    ]);
SETS:  PHP 8.1