Removing RX_NB_TH from odd places

I removed this from places where I felt it shouldn't be. Not sure why was it there in the first place.
To be reviewed.

executables/nr-ue.c

@@ -713,18 +713,18 @@ void *UE_thread(void *arg) {
 
     for (int i=0; i<UE->frame_parms.nb_antennas_tx; i++)
       txp[i] = (void *)&UE->common_vars.txdata[i][UE->frame_parms.get_samples_slot_timestamp(
-               ((slot_nr + DURATION_RX_TO_TX - RX_NB_TH)%nb_slot_frame),&UE->frame_parms,0)];
+               ((slot_nr + DURATION_RX_TO_TX)%nb_slot_frame),&UE->frame_parms,0)];
 
     int readBlockSize, writeBlockSize;
 
     if (slot_nr<(nb_slot_frame - 1)) {
       readBlockSize=get_readBlockSize(slot_nr, &UE->frame_parms);
-      writeBlockSize=UE->frame_parms.get_samples_per_slot((slot_nr + DURATION_RX_TO_TX - RX_NB_TH) % nb_slot_frame, &UE->frame_parms);
+      writeBlockSize=UE->frame_parms.get_samples_per_slot((slot_nr + DURATION_RX_TO_TX) % nb_slot_frame, &UE->frame_parms);
     } else {
       UE->rx_offset_diff = computeSamplesShift(UE);
       readBlockSize=get_readBlockSize(slot_nr, &UE->frame_parms) -
                     UE->rx_offset_diff;
-      writeBlockSize=UE->frame_parms.get_samples_per_slot((slot_nr + DURATION_RX_TO_TX - RX_NB_TH) % nb_slot_frame, &UE->frame_parms)-
+      writeBlockSize=UE->frame_parms.get_samples_per_slot((slot_nr + DURATION_RX_TO_TX) % nb_slot_frame, &UE->frame_parms)-
                      UE->rx_offset_diff;
     }
 
@@ -757,7 +757,7 @@ void *UE_thread(void *arg) {
     }
 
     curMsg->proc.timestamp_tx = timestamp+
-      UE->frame_parms.get_samples_slot_timestamp(slot_nr,&UE->frame_parms,DURATION_RX_TO_TX-RX_NB_TH) 
+      UE->frame_parms.get_samples_slot_timestamp(slot_nr,&UE->frame_parms,DURATION_RX_TO_TX) 
       - firstSymSamp - openair0_cfg[0].tx_sample_advance - UE->N_TA_offset - UE->timing_advance;
 
     notifiedFIFO_elt_t *res;
@@ -781,7 +781,7 @@ void *UE_thread(void *arg) {
             decoded_frame_rx, curMsg->proc.frame_rx  );
 
     int flags = 0;
-    int slot_tx_usrp = slot_nr + DURATION_RX_TO_TX - RX_NB_TH;
+    int slot_tx_usrp = slot_nr + DURATION_RX_TO_TX;
     if (slot_tx_usrp%10==7)
       flags=2;
     else     if (slot_tx_usrp%10==8)