Unsuccessful file transfer queue

I have been wondering about this for a while. It used to be every time I uploaded a photo directly to my WP site, I was asked to delete or purge or empty the unsuccessful file transfer queue. I am no longer asked to do this and my site does not appear the worse.

I clicked on the UFT queue today and saw a very long list of files there. I was wondering if they should be deleted, purged, or emptied; and if there might be a negative consequence of doing so on my own.

Is this truly something that no longer has to be done each time an image is uploaded>

Thanks