Yes, the room owner or admin can easily remove anyone from a room.
Once removed, the user will no longer see or be able to access the room from their available rooms list.
From the room, tap the ellipses in the top right to bring up the room controls.
Select the room member you'd like to remove, then select Remove from Room.
From the room, click the gear to bring up the room controls.
Select the Member(s) you'd like to remove from the room.
Click Remove Members button.