How to remove 'EMPTY COLUMN'?

Hello,

If you want to delete a row, you can delete a row with the empty column like using the right click on the row icon -> http://prntscr.com/owlyuw -> http://prntscr.com/owlynq or using the drag and drop -> http://prntscr.com/owlz2r or you can simply click on the row and pres the delete button from your keyboard -> https://www.screencast.com/t/Mai7iyEG
If this is not what you mean, please provide me some more details.
Please notice that you can not delete the empty column only the row that contain empty columns.

Thank you!