Bugfix when deleting a SDAP entity
Bugfix when deleting a SDAP entity that is not the first one on the list and prevents segmentation fault when trying to remove a non existing entity from a list with a single SDAP entity.
Fix delete entity function, a SDAP entity is a combination of a UE and PDUSession, we cannot just simply delete the first entity for a UE
Add function to remove all SDAP entities for a UE, this function will be needed for the new NR_RRCReestablishment procedures.
Edited by Luis Pereira