diff --git a/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php b/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php
index 323fa787c51746d7fee0b429b5466489e632bdf1..b7fd2705c5c5995bf2ecca93de4e23bb63ebdb72 100644
--- a/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php
+++ b/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php
@@ -28,12 +28,6 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
  */
 abstract class AbstractUserAuthentication
 {
-    /**
-     * Which global database to connect to
-     * @var string
-     */
-    public $global_database = '';
-
     /**
      * Table to use for session data
      * @var string