staging: rtl8188eu: remove unused function parameters

The Enable and Linked parameters of _BeaconFunctionEnable are not used.
Remove them.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210419201126.25633-4-martin@kaiser.cx


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