Remove unused computation

unav_res is already computed in nr_generate_pdsch(), and then used
inside of nr_dlsch_encoding() right after.

openair1/PHY/NR_TRANSPORT/nr_dlsch.c

@@ -580,7 +580,6 @@ static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSC
   /* PTRS */
   uint16_t dlPtrsSymPos = 0;
   int n_ptrs = 0;
-  uint32_t ptrsSymbPerSlot = 0;
   if (rel15->pduBitmap & 0x1) {
     set_ptrs_symb_idx(&dlPtrsSymPos,
                       rel15->NrOfSymbols,
@@ -588,9 +587,7 @@ static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSC
                       1 << rel15->PTRSTimeDensity,
                       rel15->dlDmrsSymbPos);
     n_ptrs = (rel15->rbSize + rel15->PTRSFreqDensity - 1) / rel15->PTRSFreqDensity;
-    ptrsSymbPerSlot = get_ptrs_symbols_in_slot(dlPtrsSymPos, rel15->StartSymbolIndex, rel15->NrOfSymbols);
   }
-  harq->unav_res = ptrsSymbPerSlot * n_ptrs;
 
 #ifdef DEBUG_DLSCH
   printf("PDSCH encoding:\nPayload:\n");