MDL-42117 JavaScript: Ensure that new activities are fully set up

We don't need to set up anything specifically for toolboxes any more, but
other third-party JS may require additional setup following new module
creation.

course/dndupload.js

@@ -1055,7 +1055,8 @@ M.course_dndupload = {
     add_editing: function(elementid) {
         var node = Y.one('#' + elementid);
         YUI().use('moodle-course-coursebase', function(Y) {
-            M.course.register_new_module(node);
+            Y.log("Invoking setup_for_resource", 'debug', 'coursedndupload');
+            M.course.coursebase.invoke_function('setup_for_resource', node);
         });
         if (M.core.actionmenu && M.core.actionmenu.newDOMNode) {
             M.core.actionmenu.newDOMNode(node);

course/yui/toolboxes/toolboxes.js

@@ -871,18 +871,6 @@ YUI.add('moodle-course-toolboxes', function(Y) {
         return new SECTIONTOOLBOX(config);
     };
 
-    M.course.register_new_module = function(module) {
-        if (typeof module === 'string') {
-            module = Y.one(module);
-        }
-        if (M.course.resource_toolbox !== null) {
-            module.setData('toolbox', M.course.resource_toolbox);
-            module.all(SELECTOR.COMMANDSPAN+ ' ' + SELECTOR.ACTIVITYACTION).each(function(){
-                this.setData('activity', module);
-            });
-        }
-    }
-
 },
 '@VERSION@', {
     requires : ['base', 'node', 'io', 'moodle-course-coursebase']