fix: remove getowner override issue #26668

Signed-off-by: SebastianKrupinski <krupinskis05@gmail.com>

apps/dav/lib/CalDAV/Calendar.php

@@ -226,9 +226,6 @@ class Calendar extends \Sabre\CalDAV\Calendar implements IRestorable, IShareable
 	}
 
 	public function getOwner(): ?string {
-		if (isset($this->calendarInfo['{http://owncloud.org/ns}owner-principal'])) {
-			return $this->calendarInfo['{http://owncloud.org/ns}owner-principal'];
-		}
 		return parent::getOwner();
 	}