I'm not sure that there is anything that you can do except wait and see. The leaves themselves may not recover but the trunk is what's important. Defoliating, in and of itself, is not going to kill your Scheff. A similar technique is used to force this species to branch out since they are normally reluctant to do so.
The method is to remove all the leaves (the leaves are actually the entire 'umbrella' not the individual leaflets) and then remove the terminal buds at the branch tips. These two actions force latent buds to emerge from lower leaf axils.
What happened kind of has you already half way there. Not sure if, in your circumstance, it's wise to take the second step , just letting you know. If you decide to leave the terminal bud it will become dominant and inhibit lower buds so that's your call.
The least stressful path is probably to wait for a few days while not letting it dry again. If some of the leaves recover, OK. If none do then cut through the leaf stems about halfway down and wait.
Be aware that a tree without active foliage will not use as much water as a healthy one so don't overcompensate. It might help to place the whole plant inside of a large plastic bag to keep the humidity up. If you do that the watering frequency will drop even more. Consider it intensive care.