If a player has either played or practiced (even if it's only one time) you do not drop that player from Registered Status. All you need to do is remove them from the team roster.
Here's why: If there is an injury to that player, AYSO's insurance company would not be able to see that child as registered if he/she had been dropped.
If a child has not played or practiced, they can be dropped. After dropping players, notify your Treasurer to let him/her know who has been dropped.
To find out more about the dropped player process in eAYSO, click here.