Turn off debug counters in tx coeff timing

Change-Id: I3d152b28bb31027156719c1ecd7544df0f9766bb

av1/decoder/decodetxb.c

diff --git a/av1/decoder/decodetxb.c b/av1/decoder/decodetxb.c
index c063cbf..f7a7035 100644
--- a/av1/decoder/decodetxb.c
+++ b/av1/decoder/decodetxb.c
@@ -59,7 +59,11 @@
                             int plane, tran_low_t *tcoeffs, TXB_CTX *txb_ctx,
                             TX_SIZE tx_size, int16_t *max_scan_line, int *eob) {
   FRAME_CONTEXT *ec_ctx = xd->tile_ctx;
+#if TXCOEFF_TIMER
+  FRAME_COUNTS *counts = NULL;
+#else
   FRAME_COUNTS *counts = xd->counts;
+#endif
   TX_SIZE txs_ctx = get_txsize_context(tx_size);
   PLANE_TYPE plane_type = get_plane_type(plane);
   MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi;