Remove outdated references to GitHub issues and comments.

lib/Kernel.php

@@ -295,7 +295,6 @@ protected function setSystemRequirements(): void
         mb_internal_encoding('UTF-8');
 
         // zlib.output_compression conflicts with while (@ob_end_flush()) ;
-        // see also: https://github.com/pimcore/pimcore/issues/291
         if (ini_get('zlib.output_compression')) {
             @ini_set('zlib.output_compression', 'Off');
         }

lib/Navigation/Container.php

@@ -46,7 +46,6 @@
 
 /**
  * NOTICE: Native types for `Page` are explicitly not used in this class to avoid OPCache issues
- * See this issue for details: https://github.com/pimcore/pimcore/issues/15970
  */
 class Container implements RecursiveIterator, Countable
 {

lib/Routing/Dynamic/DocumentRouteHandler.php

@@ -211,7 +211,6 @@ private function handleDirectRouteDocument(
 
         // Use latest version, if available, when the request is admin request
         // so then route should be built based on latest Document settings
-        // https://github.com/pimcore/pimcore/issues/9644
         if ($isAdminRequest) {
             $latestVersion = $document->getLatestVersion();
             if ($latestVersion) {

lib/Tool/Authentication.php

@@ -210,11 +210,8 @@ public static function getPasswordHash(string $username, string $plainTextPasswo
 
     private static function preparePlainTextPassword(string $username, string $plainTextPassword): string
     {
-
         $config = Config::getSystemConfiguration()['security']['password'];
 
-        // plaintext password is prepared as digest A1 hash, this is to be backward compatible because this was
-        // the former hashing algorithm in pimcore (< version 2.1.1)
         return md5(sprintf('%s:%s:%s', $username, $config['salt'], $plainTextPassword));
     }
 

lib/Tool/Text.php

@@ -221,7 +221,7 @@ private static function getElementsTagsInWysiwyg(string $text): array
             return RuntimeCache::get($hash);
         }
 
-        //$text = Pimcore_Tool_Text::removeLineBreaks($text);
+        //$text = \OpenDxp\Tool\Text::removeLineBreaks($text);
 
         $matches = self::extractOpenDxpAttributes($text);
 

models/Document/Editable/Block.php

@@ -366,7 +366,7 @@ public function getElements(): array
     {
         $document = $this->getDocument();
 
-        // https://github.com/pimcore/pimcore/issues/6629
+        // prevent exception if block has a default value
         if (!$document instanceof Model\Document\PageSnippet) {
             return [];
         }

models/Element/Recyclebin/Item.php

@@ -103,8 +103,8 @@ public function restore(?Model\User $user = null): void
                 $element->setKey($element->getKey().'_restore');
             }
 
-            // create an empty object first and clone it
-            // see https://github.com/pimcore/pimcore/issues/4219
+            // create an empty object first and clone it to prevent that unique key constraint is being ignored
+            // when restoring from recycle bin
             Model\Version::disable();
             $className = $element::class;
             /** @var Document|Asset|AbstractObject $dummy */

models/User/AbstractUser.php

@@ -241,8 +241,6 @@ public function delete(): void
     }
 
     /**
-     * https://github.com/pimcore/pimcore/issues/7085
-     *
      * @throws Exception
      */
     private function cleanupUserRoleRelations(): void

tests/Model/Inheritance/GeneralTest.php

@@ -143,7 +143,6 @@ public function testInheritance(): void
     }
 
     /**
-     * Tests https://github.com/pimcore/pimcore/pull/6269
      * [Data objects] Override inherited value with same value (break inheritance)
      *
      * @throws Exception

tests/Service/Element/VersionTest.php

@@ -108,9 +108,6 @@ public function testDisable(): void
         $this->assertEquals(3, $countAfterSave, "seems that Version::enable doesn't work");
     }
 
-    /**
-     * Test for https://github.com/pimcore/pimcore/issues/4667
-     */
     public function testCondense(): void
     {
         $this->setStorageAdapter($this->mockFileSystemStorageAdapter());