remove use base Exporter;

no need to call import

lib/calcms/work_dates.pm

@@ -16,7 +16,7 @@ use work_schedule();
 # table:   calcms_work_dates
 # columns: id, studio_id, schedule_id, start(datetime), end(datetime)
 # TODO: delete column schedule_id
-use base 'Exporter';
+#use base 'Exporter';
 our @EXPORT_OK = qw(get_columns get insert update delete get_dates);
 
 sub debug;