diff --git a/src/Api/FilterInterface.php b/src/Api/FilterInterface.php
index afe05873b08..01b9ec589d9 100644
--- a/src/Api/FilterInterface.php
+++ b/src/Api/FilterInterface.php
@@ -13,11 +13,6 @@
 
 namespace ApiPlatform\Api;
 
-interface_exists(\ApiPlatform\Metadata\FilterInterface::class);
-
-/* @phpstan-ignore-next-line */
-if (false) {
-    interface FilterInterface extends \ApiPlatform\Metadata\FilterInterface
-    {
-    }
+interface FilterInterface extends \ApiPlatform\Metadata\FilterInterface
+{
 }
diff --git a/src/Api/ResourceClassResolverInterface.php b/src/Api/ResourceClassResolverInterface.php
index 9a4f03ae5d5..753238f2f14 100644
--- a/src/Api/ResourceClassResolverInterface.php
+++ b/src/Api/ResourceClassResolverInterface.php
@@ -13,11 +13,6 @@
 
 namespace ApiPlatform\Api;
 
-interface_exists(\ApiPlatform\Metadata\ResourceClassResolverInterface::class);
-
-/* @phpstan-ignore-next-line */
-if (false) {
-    interface ResourceClassResolverInterface extends \ApiPlatform\Metadata\ResourceClassResolverInterface
-    {
-    }
+interface ResourceClassResolverInterface extends \ApiPlatform\Metadata\ResourceClassResolverInterface
+{
 }
diff --git a/src/Metadata/FilterInterface.php b/src/Metadata/FilterInterface.php
index da3e3dc29f3..3a8b8036513 100644
--- a/src/Metadata/FilterInterface.php
+++ b/src/Metadata/FilterInterface.php
@@ -54,7 +54,3 @@ interface FilterInterface
      */
     public function getDescription(string $resourceClass): array;
 }
-
-if (!interface_exists(\ApiPlatform\Api\FilterInterface::class)) {
-    class_alias(FilterInterface::class, \ApiPlatform\Api\FilterInterface::class);
-}
diff --git a/src/Metadata/Operation/PathSegmentNameGeneratorInterface.php b/src/Metadata/Operation/PathSegmentNameGeneratorInterface.php
index 83f69245e0b..321fe16b0dd 100644
--- a/src/Metadata/Operation/PathSegmentNameGeneratorInterface.php
+++ b/src/Metadata/Operation/PathSegmentNameGeneratorInterface.php
@@ -29,7 +29,3 @@ interface PathSegmentNameGeneratorInterface
      */
     public function getSegmentName(string $name, bool $collection = true): string;
 }
-
-if (!interface_exists(\ApiPlatform\Operation\PathSegmentNameGeneratorInterface::class)) {
-    class_alias(PathSegmentNameGeneratorInterface::class, \ApiPlatform\Operation\PathSegmentNameGeneratorInterface::class);
-}
diff --git a/src/Metadata/ResourceClassResolverInterface.php b/src/Metadata/ResourceClassResolverInterface.php
index 5d0acc3f9c6..4a4adeb18ec 100644
--- a/src/Metadata/ResourceClassResolverInterface.php
+++ b/src/Metadata/ResourceClassResolverInterface.php
@@ -37,7 +37,3 @@ public function getResourceClass(mixed $value, string $resourceClass = null, boo
      */
     public function isResourceClass(string $type): bool;
 }
-
-if (!interface_exists(\ApiPlatform\Api\ResourceClassResolverInterface::class)) {
-    class_alias(ResourceClassResolverInterface::class, \ApiPlatform\Api\ResourceClassResolverInterface::class);
-}
diff --git a/src/Operation/PathSegmentNameGeneratorInterface.php b/src/Operation/PathSegmentNameGeneratorInterface.php
index 382616b2952..4486babb640 100644
--- a/src/Operation/PathSegmentNameGeneratorInterface.php
+++ b/src/Operation/PathSegmentNameGeneratorInterface.php
@@ -13,11 +13,6 @@
 
 namespace ApiPlatform\Operation;
 
-interface_exists(\ApiPlatform\Metadata\Operation\PathSegmentNameGeneratorInterface::class);
-
-/* @phpstan-ignore-next-line */
-if (false) {
-    interface PathSegmentNameGeneratorInterface extends \ApiPlatform\Metadata\Operation\PathSegmentNameGeneratorInterface
-    {
-    }
+interface PathSegmentNameGeneratorInterface extends \ApiPlatform\Metadata\Operation\PathSegmentNameGeneratorInterface
+{
 }