Yes, the same thing happens to me. 

I see what you mean now.  I tried on mine and was able to replicate it. The only thing it lets me do is "edit label," but even that will leave the number and green box.  May be worth submitting as an Idea to remove it completely - I agree, it's very annoying and can be misleading.

Have you tried to remove it from the settings of the Fallout visualization itself?  That's where I remove it when I use this type of report and it always works for me. 

I'm having issues getting the histogram visualization to deliver results that make sense.I created a histogram in Workspace looking for a distribution of Page Views per Unique Visitor and applied a segment to the panel to limit the page to only the single page I'm interested in.  My segment is a hit...