ath10k: remove num_sends_allowed

The value provided by num_sends_allowed is now
derived from CE source ringbuffer state.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index 949b174..15d45b5 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -156,6 +156,7 @@
 				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);
 
+int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe);
 
 /*==================Recv=======================*/