staging: wilc1000: remove blank line before a close brace '{'

This patch removes blank line before a close brace '{' found by checkpatch.pl
CHECK: Blank lines aren't necessary before a close brace '}'

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>