staging: rtl8188eu: Remove pppoe_connection_in_progress from struct adapter

Value stored in pppoe_connection_in_progress isn't being
used by driver.

Signed-off-by: navin patidar <navin.patidar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8188eu/core/rtw_mlme.c
Simple merge

diff --cc drivers/staging/rtl8188eu/include/drv_types.h
Simple merge