chore: update rector.php

Author: kenjis

rector.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use Rector\CodeQuality\Rector\BooleanAnd\SimplifyEmptyArrayCheckRector;
 use Rector\CodeQuality\Rector\Expression\InlineIfToExplicitIfRector;
 use Rector\CodeQuality\Rector\Foreach_\UnusedForeachValueToArrayKeysRector;
@@ -18,7 +20,6 @@
 use Rector\Config\RectorConfig;
 use Rector\Core\ValueObject\PhpVersion;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector;
-use Rector\DeadCode\Rector\MethodCall\RemoveEmptyMethodCallRector;
 use Rector\EarlyReturn\Rector\Foreach_\ChangeNestedForeachIfsToEarlyContinueRector;
 use Rector\EarlyReturn\Rector\If_\ChangeIfElseValueAssignToEarlyReturnRector;
 use Rector\EarlyReturn\Rector\If_\RemoveAlwaysElseRector;