staging: pi433: Remove unused variable.

Remove unused variable which is used to store return value,
Detected by Coccinelle semantic patch returnvar.cocci

Signed-off-by: Bhagyashri Dighole <digholebhagyashri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhagyashri Dighole 2019-03-14 00:37:17 +05:30 • committed by Greg Kroah-Hartman
commit 3df3162f1d