Use DB native JSON operations for Delete post (#18122)

* Use DB native JSON operations for Delete post

https://community-daily.mattermost.com/plugins/focalboard/workspace/zyoahc9uapdn3xdptac6jb69ic/285b80a3-257d-41f6-8cf4-ed80ca9d92e5/495cdb4d-c13a-4992-8eb9-80cfee2819a4?c=cb23f737-89c3-4e19-861e-2466c0a16205

```release-note
NONE
```

* move to adapters

```release-note
NONE
```

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

store/storetest/post_store.go

@@ -616,7 +616,7 @@ func testPostStoreDelete(t *testing.T, ss store.Store) {
 	o1 := &model.Post{}
 	o1.ChannelId = model.NewId()
 	o1.UserId = model.NewId()
-	o1.Message = "zz" + model.NewId() + "b"
+	o1.Message = model.NewRandomString(10)
 	deleteByID := model.NewId()
 
 	etag1 := ss.Post().GetEtag(o1.ChannelId, false, false)