St Edward’s Staff is still included in the procession of the regalia brought into the Abbey.
The Staff is placed on the Altar then plays no further part in proceedings. Its origin in unclear.

From Loftie -

“ On the Staff of St Edward, Mr Davenport, who has critically examined it, remarks that it has been left more nearly as it was originally fashioned by Vyner than any other piece in the regalia. It is four feet seven and a half inches in length, made of gold, with rings of enamel, having at the end a long steel spike and at the head an orb or mound and cross, the mound supposed, like that on the steeple of Old St Paul’s, to contain a piece of the Cross. It was, no doubt, modelled from memory of a staff which is recorded to have been specially repaired before the coronation of Charles I. “

From Twining -

“ Apart from the two sceptres among the ornaments delivered to the king at his coronation there was another ornament known as the Staff of St Edward, the origin and proper purpose of which has not been determined. It is a long staff at the foot of which is a steel pike which suggests that is was for use as a walking stick not unlike the crozier of a bishop. This feature led to a romantic tradition growing up that the staff was to guide the king’s footsteps. But there are no indications for such use in any of the coronation Ordines. It first appears, at any rate under this designation, at the coronation of Richard III when it was carried in the procesion as a relic. “

“ Subsequently it continued to be carried in the procession to Westminster Abbey and at the beginning of the ceremony it was laid upon the altar. It was not delivered to the king nor did it play any further part in the proceedings and was not even carried in the procession from the Abbey at the end of the service. “

From a 2002 edition of The Crown Jewels Official Guidebook -