Thank you for writing.
The area above the time table is the all day header area. In this section are displayed the All day events. You can observe the same implementation in MS Outlook. Nevertheless, you can remove this area by using the following line of code:
If you are using another view you should use the corresponding Get<viewtype>View() method of RadScheduler.
I hope this will be useful. Should you have further questions, I would be glad to help.
the Telerik team