How do you stop the "copy all" button from appearing on Preview images

A random icon keeps appearing on my images (bottom right) when I preview them (by pressing space).

My understanding was that it was there to prompt people to copy the text within the image,

but what Apple completely failed to realise (yet again) was that not every body wants to copy text from an image,

and once more, the copy all icon actually appears on previewed images where there is no text (including the screenshot below) and I never ran my mouse over the image to prompt any icon in the first place, so it was a complete waste of coding.

How do you stop that annoying icon from appearing on all my previewed images?