Revert "sunrpc: fix peername failed on closed listener"

This reverts commit b292cf9c.  The
commit that it attempted to patch up,
b0401d72, was fundamentally wrong, and
will also be reverted.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>

net/sunrpc/svc_xprt.c

@@ -706,8 +706,7 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
 	spin_unlock_bh(&pool->sp_lock);
 
 	len = 0;
-	if (test_bit(XPT_LISTENER, &xprt->xpt_flags) &&
-	    !test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
+	if (test_bit(XPT_LISTENER, &xprt->xpt_flags)) {
 		struct svc_xprt *newxpt;
 		newxpt = xprt->xpt_ops->xpo_accept(xprt);
 		if (newxpt) {