How to remove your Rockstar Games Social Club account
It ought to be possible to delete your account, but last time we checked, the account removal link was unavailable.
From their FAQ:
To delete your Rockstar Games account, sign into your Social Club account, go to https://socialclub.rockstargames.com/profile/requestdeleteaccount.html, and follow the instructions on the page. If you are unable to log in to Social Club or you do not have access to your account, please email deleteaccount@RockstarGames.com from the same email account you used to join Social Club, include your Social Club nickname in the message and include “Delete Account” in the subject field.
Besides the -hopefully- temporal unavailable service, the link was hard to find. Greylisted for now.
Direct removal link: https://socialclub.rockstargames.com/profile/requestdeleteaccount.html
Helpful Trick: Removing online data
Helpful Trick: Remove third-party logins
If you signed up for Rockstar Games Social Club using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Rockstar Games Social Club. Click here to find out how.