This post will guide you through the User Account Deletion process.
Browse to the User Login Page and Login to your User Account
Select Edit Settings under the Settings option in the sidebar menu
Set Delete My Account to Yes and the click on the Save Settings button. Your account will immediately be deleted and you will be redirected to the Members Login screen.
Should the Account Deletion option be unavailable, you will have to contact the site administrator directly with a request to delete your account.