staging: r8188eu: no need for an else after return

The else branch at the end of send_beacon is not necessary. We return in
the if branch.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220409163212.241122-2-martin@kaiser.cx


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