You can quit using your account, but you cannot remove it. It would be good if you end your current games first if you do not plan to remain on the site. It appears that you only have two games going and have not completed two moves in either game, so you can just delete the games.
Your account will still be here for future use if you decide to return, so make a note of your logon information.
Originally posted by aging blitzer maybe he wants to un-register
and would like RHP not to store any of his registration information
e.g. email address
I don't think you can un-register.
What you can do is change your email address to something unusable.