Delete all files on cloud

Is there an easy way of deleting all the files on the cloud. Lightroom CC has been a disappointment for me and I am going to try a more manual way of handling my files where I will try and preserve my directory structure. But first I want to empty the cloud of everything. I have over 30,000 files and I have had placeholders created for these overnight when I left the computer running. At the moment all I see is the option of selecting them one by one and deleting them, which is not feasible.