Elasticsearch downgrade on CentOS 6

gistfile1.txt

service elasticsearch stop
yum list installed | grep elastic
yum remove elasticsearch.noarch
wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.0.noarch.rpm
yum install elasticsearch-1.7.0.noarch.rpm
rm /var/lock/subsys/elasticsearch -Rf
rm -Rf /var/lib/elasticsearch/*
service elasticsearch start

curl -XGET '127.0.0.1:9200'
---
{
  "status" : 200,
  "name" : "Gibbon",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "1.7.0",
    "build_hash" : "929b9739cae115e73c346cb5f9a6f24ba735a743",
    "build_timestamp" : "2015-07-16T14:31:07Z",
    "build_snapshot" : false,
    "lucene_version" : "4.10.4"
  },
  "tagline" : "You Know, for Search"
}