orangefs: remove redundant assignment to err

Variable err is initialized to a value that is never read and it
is re-assigned later.  The initialization is redundant and can
be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>

fs/orangefs/inode.c

@@ -940,7 +940,7 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
 int orangefs_getattr(const struct path *path, struct kstat *stat,
 		     u32 request_mask, unsigned int flags)
 {
-	int ret = -ENOENT;
+	int ret;
 	struct inode *inode = path->dentry->d_inode;
 
 	gossip_debug(GOSSIP_INODE_DEBUG,