blockchain: comment out logger in test code that causes a race condition (#3500)

blockchain/pool_test.go

@@ -42,7 +42,9 @@ func (p testPeer) runInputRoutine() {
 func (p testPeer) simulateInput(input inputData) {
 	block := &types.Block{Header: types.Header{Height: input.request.Height}}
 	input.pool.AddBlock(input.request.PeerID, block, 123)
-	input.t.Logf("Added block from peer %v (height: %v)", input.request.PeerID, input.request.Height)
+	// TODO: uncommenting this creates a race which is detected by: https://github.com/golang/go/blob/2bd767b1022dd3254bcec469f0ee164024726486/src/testing/testing.go#L854-L856
+	// see: https://github.com/tendermint/tendermint/issues/3390#issue-418379890
+	// input.t.Logf("Added block from peer %v (height: %v)", input.request.PeerID, input.request.Height)
 }
 
 type testPeers map[p2p.ID]testPeer