Exclude post after date day passing [closed]

Question

I'm trying to make a page on my blog using this plugin called Idealien Rideshare & i want to make the rides disappear after the date passes.

Plugin link http://wordpress.org/extend/plugins/idealien-rideshare/

I think the problem is with this code & i'm not sure how to resolve this. I'v tried something but the page load's very slow

Can you help me make this?

                    //Retrieve all rideshares by event

                    $queryParameters = array(

                        'post_type' => 'idealien_rideshare',

                        'posts_per_page' => '-1',

                        'orderby' => 'meta_value',

                        'meta_key' => 'idealien_rideshare_event',

                        'meta_value' => $event->name

                    );

The author of the plugin told me to change that line of code with this

$dateCompare = '>=';
$dateValue = date("m/d/Y", time());
$dateMetaQuery = array(
    'key' => 'idealien_rideshare_departureDate',
    'value' => $dateValue,
    'compare' => $dateCompare
);

if ( $dateMetaQuery ) { $meta_query[] = $dateMetaQuery; }

$queryParameters = array(
    'post_type' => 'idealien_rideshare',
    'posts_per_page' => '-1',
    'meta_query' => $meta_query,
        'orderby' => 'meta_value',
    'meta_key' => 'idealien_rideshare_event',
    'order' => 'ASC'
);

but still not working. I gave the link of the plugin, to have it & look on the full code.

Thank you & waiting all your answers.