How can I unlink my steam from a lost Ea Account ?

[nafir]

"Hello, I need help to delete my EA account from Steam because I no longer have access to the email used for logging into EA, and I don’t have access to the EA account anymore."

[Lithurge]

By contacting EA - the link is at their end not Steam's.

[Satoru]

Steam does not 'connect' accounts on their end and thus has no access to how you log into 3rd party accounts

https://help.ea.com/en/help/account/im-locked-out-of-my-ea-account/