[FIX] web: properly remove nvd3 tooltips

We fixed it for the graph view in 6bdf72bac5f6e8 but this
needs to be fixed for every views.

addons/web/static/src/js/action_manager.js

@@ -180,6 +180,9 @@ var ViewManagerAction = WidgetAction.extend({
      * @return {jQuery} the view_manager's $el
      */
     detach: function() {
+        // Hack to remove badly inserted nvd3 tooltips ; should be removed when upgrading nvd3 lib
+        $('body > .nvtooltip').remove();
+
         return this.widget.$el.detach();
     },
     /**

addons/web/static/src/js/views/graph_view.js

@@ -19,10 +19,6 @@ var GraphView = View.extend({
     icon: 'fa-bar-chart',
     view_type: 'graph',
 
-    on_detach_callback: function () {
-        $('body > .nvtooltip').remove();
-    },
-
     init: function(parent, dataset, view_id, options) {
         this._super(parent, dataset, view_id, options);