staging: rtl8192e: Remove duplicate declartion

Remove dupilcate declartion of function rtllib_stop_send_beaconsi()
notify_wx_assoc_event() in rtl8192e/rtllib.h file.

Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com>
Link: https://lore.kernel.org/r/20210509171427.GA9937@user


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>