In order to remove ERC-20 tokens from circulation, we created a voluntary Buy-back program for everyone which follows a 1:20 ratio where for every 20 old tokens you will receive 1 new token. Instructions have been released yesterday :
https://youtu.be/w4U6Bh-7vVAWhy do you need to remove ERC-20 tokens from circulation? It's not like they are hurting anyone. In fact the rise of the price could just confuse people about their purpose.
Ass we mentioned in previous reply, they are not exactly in circulation, but they are still out there and we want them all in one place so they are not confused with the new SPHTX token. Also this is our way to say thank you to all our supporters by giving them additional tokens for free.