Add missing features that can be controlled when adding a new module to core here: https://github.com/moodle/moodle/blob/master/course/moodleform_mod.php#L200

Module plugins can define which core features they support. However, not every feature can be disabled/enabled. This patch provides greater definition to which features a module plugin supports.

Current defaults are unchanged.

Feature control added for:

• Completion
• Availability 
• Access restriction
• Competencies

Steps to test:

1. Install the attached mod_test plugin in your test environment.
2. Create a test course.
3. Add the new activity test.
4. In the /course/modedit.php view you will not be able to see the availability, completion, restriction and competencies options.
5. You can enable or disable features to test this plugin here: mod/test/lib.php test_supports function:

function test_supports($feature) {

    switch ($feature) {

        case FEATURE_MOD_INTRO:

            return true;

        case FEATURE_AVAILABILITY:

        case FEATURE_COMPLETION:

        case FEATURE_RESTRICTIONS:

        case FEATURE_COMPETENCIES:

            return false;

        default:

            return null;

    }

}

Also, Update features in existing module. (to do this update the function modulename_supports($feature) { in the lib.php file)