diff --git a/ecs.php b/ecs.php
index 0f68bf48..c593fa26 100644
--- a/ecs.php
+++ b/ecs.php
@@ -18,6 +18,7 @@
         __DIR__ . '/tests',
         __DIR__ . '/rules-tests',
         __DIR__ . '/ecs.php',
+        __DIR__ . '/rector.php',
     ]);
 
     $ecsConfig->ruleWithConfiguration(NoSuperfluousPhpdocTagsFixer::class, [
diff --git a/rector.php b/rector.php
index da781806..32603f7e 100644
--- a/rector.php
+++ b/rector.php
@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Rector\CodingStyle\Rector\String_\UseClassKeywordForClassNameResolutionRector;
 use Rector\Config\RectorConfig;
 use Rector\Php55\Rector\String_\StringClassNameToClassConstantRector;
 use Rector\PHPUnit\Set\PHPUnitSetList;
@@ -10,6 +11,7 @@
 
 return static function (RectorConfig $rectorConfig): void {
     $rectorConfig->importNames();
+    $rectorConfig->removeUnusedImports();
 
     $rectorConfig->sets([
         LevelSetList::UP_TO_PHP_81,
@@ -30,12 +32,14 @@
         __DIR__ . '/tests',
         __DIR__ . '/rules-tests',
         __DIR__ . '/config',
+        __DIR__ . '/rector.php',
+        __DIR__ . '/ecs.php',
     ]);
 
     $rectorConfig->skip([
         StringClassNameToClassConstantRector::class,
 
-        \Rector\CodingStyle\Rector\String_\UseClassKeywordForClassNameResolutionRector::class => [
+        UseClassKeywordForClassNameResolutionRector::class => [
             // not useful short class cases, possibly skip in the rule
             __DIR__ . '/rules/DowngradePhp80/Rector/MethodCall/DowngradeReflectionClassGetConstantsFilterRector.php',
             __DIR__ . '/rules/DowngradePhp81/Rector/FuncCall/DowngradeFirstClassCallableSyntaxRector.php',
diff --git a/src/NodeAnalyzer/ExprInTopStmtMatcher.php b/src/NodeAnalyzer/ExprInTopStmtMatcher.php
index 3036de05..19c8f5f6 100644
--- a/src/NodeAnalyzer/ExprInTopStmtMatcher.php
+++ b/src/NodeAnalyzer/ExprInTopStmtMatcher.php
@@ -7,7 +7,6 @@
 use PhpParser\Node;
 use PhpParser\Node\Expr;
 use PhpParser\Node\Expr\Closure;
-use PhpParser\Node\Stmt;
 use PhpParser\Node\Stmt\Do_;
 use PhpParser\Node\Stmt\Echo_;
 use PhpParser\Node\Stmt\Expression;