[MM-30136] Issuing /dnd consecutively should not toggle the user status between dnd and online (#16258)

Summary
/dnd will only do a do not disturb

Ticket Link
Fixes #16253
JIRA https://mattermost.atlassian.net/browse/MM-30136

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

app/slashcommands/command_dnd.go

@@ -34,16 +34,6 @@ func (me *DndProvider) GetCommand(a *app.App, T goi18n.TranslateFunc) *model.Com
 }
 
 func (me *DndProvider) DoCommand(a *app.App, args *model.CommandArgs, message string) *model.CommandResponse {
-	status, err := a.GetStatus(args.UserId)
-	if err != nil {
-		return &model.CommandResponse{ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL, Text: args.T("api.command_dnd.error")}
-	} else {
-		if status.Status == "dnd" {
-			a.SetStatusOnline(args.UserId, true)
-			return &model.CommandResponse{ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL, Text: args.T("api.command_dnd.disabled")}
-		}
-	}
-
 	a.SetStatusDoNotDisturb(args.UserId)
 
 	return &model.CommandResponse{ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL, Text: args.T("api.command_dnd.success")}

i18n/en.json

@@ -715,14 +715,6 @@
     "id": "api.command_dnd.desc",
     "translation": "Do not disturb disables desktop and mobile push notifications."
   },
-  {
-    "id": "api.command_dnd.disabled",
-    "translation": "Do Not Disturb is disabled."
-  },
-  {
-    "id": "api.command_dnd.error",
-    "translation": "Error to retrieve the user status."
-  },
   {
     "id": "api.command_dnd.name",
     "translation": "dnd"