Staging:wlan-ng:Merged two lines into one

The last two lines of these functions are compressed into one.
Also removed the variable ret as it is now not used.
Found using coccinelle:
@@
expression e, ret;
@@

-ret =
+return
     e;
-return ret;

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>