ath9k: Delete an unnecessary check before the function call "relay_close"
ath9k: Delete an unnecessary check before the function call "relay_close"

The relay_close() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <da4b4ed1d87736710c484a0ca84b2abc9f4ef095@users.sourceforge.net>
Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@codeaurora.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs