fix(test): BackedEnumFilterTestTrait sync

Author: vinceAmstoutz

src/Doctrine/Orm/Tests/Filter/BackedEnumFilterTestTrait.php

@@ -32,17 +32,6 @@ public function testGetDescription(): void
                 'property' => 'dummyBackedEnum',
                 'type' => 'string',
                 'required' => false,
-                'is_collection' => false,
-                'schema' => [
-                    'type' => 'string',
-                    'enum' => ['one', 'two'],
-                ],
-            ],
-            'dummyBackedEnum[]' => [
-                'property' => 'dummyBackedEnum',
-                'type' => 'string',
-                'required' => false,
-                'is_collection' => true,
                 'schema' => [
                     'type' => 'array',
                     'items' => [
@@ -63,17 +52,6 @@ public function testGetDescriptionDefaultFields(): void
                 'property' => 'dummyBackedEnum',
                 'type' => 'string',
                 'required' => false,
-                'is_collection' => false,
-                'schema' => [
-                    'type' => 'string',
-                    'enum' => ['one', 'two'],
-                ],
-            ],
-            'dummyBackedEnum[]' => [
-                'property' => 'dummyBackedEnum',
-                'type' => 'string',
-                'required' => false,
-                'is_collection' => true,
                 'schema' => [
                     'type' => 'array',
                     'items' => [