staging:rtl8192u: Remove blank line - Style

Removal of a blank like which causes a checkpatch issue.

This is a simple coding style change and should have no impact on
runtime code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>