Fix Coverity Scan CID 341064 (Null-checking mac_MainConfig->phr_Config...

Fix Coverity Scan CID 341064 (Null-checking mac_MainConfig->phr_Config suggests that it may be null, but it has already been dereferenced on all paths leading to the check.)

openair2/RRC/LTE/rrc_eNB.c

@@ -3931,10 +3931,9 @@ flexran_rrc_eNB_generate_defaultRRCConnectionReconfiguration(const protocol_ctxt
   free(mac_MainConfig->ul_SCH_Config);
   mac_MainConfig->ul_SCH_Config = NULL;
 
-  if(mac_MainConfig->phr_Config){
   free(mac_MainConfig->phr_Config);
   mac_MainConfig->phr_Config = NULL;
-  }
+
   free(mac_MainConfig);
   mac_MainConfig = NULL;
 }