Staging: lustre: lustre: osc: 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/osc/osc_request.c

@@ -3217,8 +3217,6 @@ int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
 
 static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 {
-	int rc = 0;
-
 	switch (stage) {
 	case OBD_CLEANUP_EARLY: {
 		struct obd_import *imp;
@@ -3253,7 +3251,7 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
 		break;
 		}
 	}
-	return rc;
+	return 0;
 }
 
 int osc_cleanup(struct obd_device *obd)