Removing an empty drop down menu

[Chris_Maloney]

I need help removing an empty drop down menu. 

I added some cells to my spreadsheet after placing a drop down menu in a cell.  Now the cell where the drop down was still shows an arrow beside it for a drop down, but there are no items listed.  I want to get rid of the drop down arrow beside the original cell that now no longer has a drop down.

I did go through the Data tab > Data Validation and clicked on the "Clear All" button.   However the arrow still appears beside the cell.  How can I get rid of it?

Thanks.

[#2]

@Chris_Maloney 

Clear All shall work if you stay on cell(s) with data validation. Perhaps you may provide small sample file?

[#3]

@Sergei Baklan ,

I did try that.  I've attached a sample file.  The cell in question is I-52.

[#4]

@Chris_Maloney 

That's not a data validation, this is Combo Box control

Just select column J and Del

[#5]

That worked. Thanks!

[#6]

@Chris_Maloney , you are welcome