Staging: lustre: lustre: lov: Remove variable that is not very useful.

The following patch removes a variable that is not very useful using
coccinelle.
The semantic patch used was:
@@
identifier ret;
@@

-int ret = 0;
 ... when != ret
     when strict
-return ret;
+return 0;
Signed-off-by: Heena Sirwani <heenasirwani@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/lov/lov_obd.c

@@ -847,7 +847,6 @@ int lov_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 
 static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 {
-	int rc = 0;
 	struct lov_obd *lov = &obd->u.lov;
 
 	switch (stage) {
@@ -865,7 +864,7 @@ static int lov_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 		break;
 	}
 
-	return rc;
+	return 0;
 }
 
 static int lov_cleanup(struct obd_device *obd)