mwifiex: remove data_complete handler

This patch removes redundant data complete handler.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/mwifiex/main.h
Simple merge

diff --cc drivers/net/wireless/mwifiex/txrx.c
Simple merge

diff --cc drivers/net/wireless/mwifiex/usb.c
Simple merge