Staging: rtl8188eu/core: remove paragraph which mention FSF address in comment header

As FSF address changed in the past, and can change in the future,
remove the address paragraph in the comment header, and avoid a warning
of checkpatch.

Signed-off-by: Colin Vidal <colin@cvidal.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>