select-not-selected-ex.js

jQuery(this).find('option:not(:selected)').each(function (i) {
            // Check for a number input with an id of this task type id
            let exists = jQuery('input[id="'+ jQuery(this).val() +'"]');
            // Does exist
            if ( exists.length !== 0){
                // Remove it
                jQuery(exists).parent().remove();
            }
        });