MM-33708 - Add MentionCountRoot column to ChannelMembers (#17099)

* added new column for root-only mentions

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

model/client4.go

@@ -5885,20 +5885,6 @@ func (c *Client4) DownloadExport(name string, wr io.Writer, offset int64) (int64
 	return n, BuildResponse(r)
 }
 
-func (c *Client4) GetThreadMentionsForUserPerChannel(userId, teamId string) (map[string]int64, *Response) {
-	url := c.GetUserThreadsRoute(userId, teamId)
-	r, appErr := c.DoApiGet(url+"/mention_counts", "")
-	if appErr != nil {
-		return nil, BuildErrorResponse(r, appErr)
-	}
-	defer closeBody(r)
-
-	var counts map[string]int64
-	json.NewDecoder(r.Body).Decode(&counts)
-
-	return counts, BuildResponse(r)
-}
-
 func (c *Client4) GetUserThreads(userId, teamId string, options GetUserThreadsOpts) (*Threads, *Response) {
 	v := url.Values{}
 	if options.Since != 0 {