Fix calendar query for instances without tl_calendar.published

src/Controller/Frontend/EventFilterController.php

@@ -49,9 +49,7 @@ class EventFilterController extends AbstractFrontendModuleController
                 <<<'SQL'
                     SELECT e.id
                     FROM tl_calendar_events e
-                    INNER JOIN tl_calendar c ON c.id=e.pid
                     WHERE e.published='1'
-                      AND c.published='1'
                       AND (e.startTime>=? OR e.endTime>=?)
                     ORDER BY e.startTime ASC
                 SQL,
@@ -63,10 +61,8 @@ class EventFilterController extends AbstractFrontendModuleController
                 <<<'SQL'
                     SELECT e.id
                     FROM tl_calendar_events e
-                    INNER JOIN tl_calendar c ON c.id=e.pid
                     WHERE e.pid IN (?)
                       AND e.published='1'
-                      AND c.published='1'
                       AND (e.startTime>=? OR e.endTime>=?)
                     ORDER BY e.startTime ASC
                 SQL,