From d487b16de17f4dfb54b0b47e41e054d517f36284 Mon Sep 17 00:00:00 2001
From: Ilya Sevostyanov <d3th@zeen.ru>
Date: Tue, 1 Oct 2019 10:10:56 +0300
Subject: [PATCH] confchange: removed duplicate check in confchange.Simple.

---
 raft/confchange/confchange.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/raft/confchange/confchange.go b/raft/confchange/confchange.go
index a0dc486df..741f81115 100644
--- a/raft/confchange/confchange.go
+++ b/raft/confchange/confchange.go
@@ -142,9 +142,6 @@ func (c Changer) Simple(ccs ...pb.ConfChangeSingle) (tracker.Config, tracker.Pro
 	if n := symdiff(incoming(c.Tracker.Voters), incoming(cfg.Voters)); n > 1 {
 		return tracker.Config{}, nil, errors.New("more than one voter changed without entering joint config")
 	}
-	if err := checkInvariants(cfg, prs); err != nil {
-		return tracker.Config{}, tracker.ProgressMap{}, nil
-	}
 
 	return checkAndReturn(cfg, prs)
 }