staging: rtl8188eu: remove else after break or return

Remove unnecessary else after break or return to improve readability
and clear checkpatch warnings.

WARNING: else is not generally useful after a break or return

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20200118173343.32405-1-straube.linux@gmail.com


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