DMCA violation: remove the material immediately

As you have requested taking down the book with LeanPub, you have no rights to distribute my copyrighted material. Please remove the book immediately. I'm asking kindly first, and if this does not happen by mid April, will take things forward as per DMCA act with github. 
https://help.github.com/en/articles/guide-to-submitting-a-dmca-takedown-notice