diff --git a/lib/Doctrine/ORM/Tools/SchemaTool.php b/lib/Doctrine/ORM/Tools/SchemaTool.php
index ba63e6964d5..423ed3b5320 100644
--- a/lib/Doctrine/ORM/Tools/SchemaTool.php
+++ b/lib/Doctrine/ORM/Tools/SchemaTool.php
@@ -709,11 +709,6 @@ private function gatherRelationJoinColumns(
         }
 
         $compositeName = $theJoinTable->getName().'.'.implode('', $localColumns);
-
-        if (! $this->platform->supportsForeignKeyConstraints()) {
-            return;
-        }
-
         if (isset($addedFks[$compositeName])
             && ($foreignTableName != $addedFks[$compositeName]['foreignTableName']
             || 0 < count(array_diff($foreignColumns, $addedFks[$compositeName]['foreignColumns'])))
diff --git a/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC2138Test.php b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC2138Test.php
index c6019f849c5..960395e9c70 100644
--- a/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC2138Test.php
+++ b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC2138Test.php
@@ -14,9 +14,6 @@ class DDC2138Test extends OrmFunctionalTestCase
     public function testForeignKeyOnSTIWithMultipleMapping()
     {
         $em = $this->_em;
-        if (! $em->getConnection()->getDatabasePlatform()->supportsForeignKeyConstraints()) {
-            $this->markTestSkipped('Platform does not support foreign keys.');
-        }
         $schemaTool = new SchemaTool($em);
 
         $classes = [
diff --git a/tests/Doctrine/Tests/ORM/Functional/Ticket/GH7841Test.php b/tests/Doctrine/Tests/ORM/Functional/Ticket/GH7841Test.php
deleted file mode 100644
index 4e6f46324ca..00000000000
--- a/tests/Doctrine/Tests/ORM/Functional/Ticket/GH7841Test.php
+++ /dev/null
@@ -1,57 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Doctrine\Tests\ORM\Functional\Ticket;
-
-use Doctrine\Common\Collections\ArrayCollection;
-use Doctrine\Tests\OrmFunctionalTestCase;
-
-/**
- * @group GH7841
- */
-class GH7841Test extends OrmFunctionalTestCase
-{
-    public function testForeignKeysNotCompare() : void
-    {
-        if ($this->_em->getConnection()->getDatabasePlatform()->supportsForeignKeyConstraints()) {
-            $this->markTestSkipped('Test for platforms without foreign keys support');
-        }
-        $class = $this->_em->getClassMetadata(GH7841Child::class);
-        $this->_schemaTool->updateSchema([$class], true);
-        $diff = $this->_schemaTool->getUpdateSchemaSql([$class], true);
-
-        self::assertEmpty($diff);
-
-        $this->_schemaTool->dropSchema([$class]);
-    }
-}
-
-/**
- * @Entity
- */
-class GH7841Parent
-{
-    /** @Id @Column(type="integer") @GeneratedValue */
-    public $id;
-
-    /** @OneToMany(targetEntity=GH7841Child::class, mappedBy="parent") */
-    public $children;
-
-    public function __construct()
-    {
-        $this->children = new ArrayCollection();
-    }
-}
-
-/**
- * @Entity
- */
-class GH7841Child
-{
-    /** @Id @Column(type="integer") @GeneratedValue */
-    public $id;
-
-    /** @ManyToOne(targetEntity=GH7841Parent::class) */
-    public $parent;
-}