Dont send DCIs repeatedly for a given sfn/slot

Although the timing isnt perfect, if the VNF adjusts
in the middle of scheduling a DCI the gNB would try to
send two DCIs for a certain sfn/slot; this commit will
stop that from happening. The timing issue still persits.

executables/nr-ue.c

@@ -351,7 +351,6 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
       };
       send_nsa_standalone_msg(&UL_INFO, crc_ind->header.message_id);
       free(crc_ind->crc_list);
-
     }
   }
   return NULL;