No, you do not need to withdraw the $4. The Roth conversion is not a contribution to the Roth IRA. Backdoor Roth is completed in two steps, the nondeductible contribution to the traditional IRA and the Roth conversion. The $4 will be taxable income in the Roth conversion.
Please see How do I enter a backdoor Roth IRA conversion? for instructions.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
