Remove structured markup widget

gistfile1.php

<?php
add_filter( 'tribe_events_event_classes', 'remove_markup_events_widget' );
function remove_markup_events_widget() {
	global $post, $wp_query;

	$event_id = $post->ID;


	if ( ! $event_id ) {
		return '';
	}

	$classes         = array( 'vevent', 'type-tribe_events', 'post-' . $event_id, 'tribe-clearfix' );
	$tribe_cat_slugs = tribe_get_event_cat_slugs( $event_id );

	foreach ( $tribe_cat_slugs as $tribe_cat_slug ) {
		if ( ! empty( $tribe_cat_slug ) ) {
			$classes[] = 'tribe-events-category-' . $tribe_cat_slug;
		}
	}
	if ( $venue_id = tribe_get_venue_id( $event_id ) ) {
		$classes[] = 'tribe-events-venue-' . $venue_id;
	}
	if ( $organizer_id = tribe_get_organizer_id( $event_id ) ) {
		$classes[] = 'tribe-events-organizer-' . $organizer_id;
	}
	// added first class for css
	if ( ( $wp_query->current_post == 0 ) && ! tribe_is_day() ) {
		$classes[] = 'tribe-events-first';
	}
	// added last class for css
	if ( $wp_query->current_post == $wp_query->post_count - 1 ) {
		$classes[] = 'tribe-events-last';
	}

	return $classes;
}