Avoid recreation of LCIDs with wrong priority

In all cases (NSA, HO), we create LCIDs before the UE triggers random
access. Hence, process_addmod_bearers_cellGroupConfig() is not
necessary, as it just tries to recreate an LCID.

Furthermore, it includes a bug, as this function does set a wrong
priority (0), so the sorting of LCIDs is not correct. This in turn
creates problems with reestablishment, as LCID 1/SRB1 is not in the
first position, making reestablishment fail (where we assume LCID 1 be
in first position).

The actual bug of setting priorities is fixed in the next commit.

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

@@ -832,7 +832,6 @@ static void nr_rx_ra_sdu(const module_id_t mod_id,
     nr_mac_reset_ul_failure(UE_scheduling_control);
     reset_dl_harq_list(UE_scheduling_control);
     reset_ul_harq_list(UE_scheduling_control);
-    process_addmod_bearers_cellGroupConfig(&UE->UE_sched_ctrl, UE->CellGroup->rlc_BearerToAddModList);
     int ss_type;
     // we configure the UE using common search space with DCIX0 while waiting for a reconfiguration in SA
     // in NSA (or do-ra) there is no reconfiguration in NR