No, you do not need to worry about removing learners! You can just focus on showing up for the learners who are present.
Learners who repeatedly miss required sessions without submitting an excused absence will be automatically suspended from the Schoolhouse platform. This means they will also be removed from any series they are currently enrolled in. To regain access, suspended learners must complete a short training. After completing the training, they may be able to rejoin their original series—depending on space availability.
This related FAQ may be helpful to review: