ath10k: delete struct ce_sendlist

struct ce_sendlist is useless as we always add just one buffer onto it.
And most importantly, it's ugly as it doesn't use skb properly.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --cc drivers/net/wireless/ath/ath10k/ce.c
Simple merge

diff --cc drivers/net/wireless/ath/ath10k/ce.h
Simple merge

diff --cc drivers/net/wireless/ath/ath10k/pci.c
Simple merge