## 删除文档
```
DELETE /user/docs/1
```
删除成功返回
```
{
"_index" : "user",
"_type" : "docs",
"_id" : "1",
"_version" : 2,
"result" : "deleted",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 1,
"_primary_term" : 1
}
```
重复删除返回
```
{
"_index" : "user",
"_type" : "docs",
"_id" : "1",
"_version" : 1,
"result" : "not_found",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 2,
"_primary_term" : 1
}
```
