i would have a go at simply cutting away the wedges in the tenon first using a correct size chisel and some patience and then try to use a block of wood the same size as the tenon to knock it back through. They generally only used a normal mortice and tenon on the older doors.
If you strip the door back on the face as well near the tenon you will be able to see if there is a wood dowl. If so drill that out too and go to local hardware store and buy some new dowl in the correct size to rejoint them later.
If the doors are old the glue probably would have given up the ghost anyway… all depends on the age etc.