Remove utils.ClientCfg and utils.ClientCfgHash (#8041)

* remove utils.ClientCfg and utils.ClientCfgHash

* remove unused import

api/context.go

@@ -151,7 +151,7 @@ func (h handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	c.SetSiteURLHeader(app.GetProtocol(r) + "://" + r.Host)
 
 	w.Header().Set(model.HEADER_REQUEST_ID, c.RequestId)
-	w.Header().Set(model.HEADER_VERSION_ID, fmt.Sprintf("%v.%v.%v.%v", model.CurrentVersion, model.BuildNumber, utils.ClientCfgHash, utils.IsLicensed()))
+	w.Header().Set(model.HEADER_VERSION_ID, fmt.Sprintf("%v.%v.%v.%v", model.CurrentVersion, model.BuildNumber, c.App.ClientConfigHash(), utils.IsLicensed()))
 
 	// Instruct the browser not to display us in an iframe unless is the same origin for anti-clickjacking
 	if !h.isApi {