staging: rtl8712: remove wrapper function _queue_empty

_queue_empty is an inline wrapper around list_empty.  This patch removes this
wrapper function and instead calls list_empty directly.

Signed-off-by: James A Shackleford <shack@linux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8712/osdep_service.h
Simple merge

diff --cc drivers/staging/rtl8712/rtl8712_cmd.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl8712_recv.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl8712_xmit.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl871x_ioctl_set.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl871x_mlme.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl871x_recv.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl871x_sta_mgt.c
Simple merge

diff --cc drivers/staging/rtl8712/rtl871x_xmit.c
Simple merge