Remove non-deterministic to class children detector (#212)

Author: TomasVotruba

rules-tests/DowngradePhp72/Rector/ClassMethod/DowngradeParameterTypeWideningRector/Fixture/indirect_implements_native_interface.php.inc

@@ -6,14 +6,12 @@
 
 use PhpParser\Node\Stmt\ClassMethod;
 use PHPStan\Reflection\ClassReflection;
-use Rector\FamilyTree\NodeAnalyzer\ClassChildAnalyzer;
 use Rector\NodeNameResolver\NodeNameResolver;
 
 final class BuiltInMethodAnalyzer
 {
     public function __construct(
         private readonly NodeNameResolver $nodeNameResolver,
-        private readonly ClassChildAnalyzer $classChildAnalyzer
     ) {
     }
 
@@ -24,9 +22,6 @@ public function isImplementsBuiltInInterface(ClassReflection $classReflection, C
         }
 
         $methodName = $this->nodeNameResolver->getName($classMethod);
-        if ($this->classChildAnalyzer->hasChildClassMethod($classReflection, $methodName)) {
-            return false;
-        }
 
         foreach ($classReflection->getInterfaces() as $interfaceReflection) {
             if (! $interfaceReflection->isBuiltin()) {