[FIX] survey: fix duplicate timer

This commit fix a bug introduced by 910897fc97
which displayed two timers when starting a survey.

Task-3497526

closes odoo/odoo#134686

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/survey/static/src/js/survey_form.js

@@ -475,7 +475,7 @@ publicWidget.registry.SurveyFormWidget = publicWidget.Widget.extend(SurveyPreloa
             }
 
             // Start datetime pickers
-            self.trigger_up("widgets_start_request");
+            self.trigger_up("widgets_start_request", { $target: this.$el.find('.o_survey_form_date') });
             if (this.options.isStartScreen || (options && options.initTimer)) {
                 this._initTimer();
                 this.options.isStartScreen = false;