Remove alt description field from template

Hello,

We need to hide all the information that we have currently displaying in the alt description field of the NG Gallery showing thumbnails on a page. (We don’t want to delete them because there are thousands of file and we will need to display that information again at some point.)

See sample image on front-end.

See sample image on back-end.

I tried hiding it in the CSS, but that didn’t work because it is in the same SPAN as the alt title, which we still need to show.

I tried to delete the line of code in the php file, but nothing happened. What file and line of code do I need to remove so that it will not show that information?

I’ve tried removing it from:
nextgen_basic_gallery > templates > thumbnails > index.php

The line of code I removed was:
data-description="<?php echo esc_attr(stripslashes($image->description)); ?>"

from the code below:

<div class="ngg-gallery-thumbnail">
            <a href="<?php echo esc_attr($storage->get_image_url($image, 'full', TRUE))?>"
               title="<?php echo esc_attr($image->description)?>"
               data-src="<?php echo esc_attr($storage->get_image_url($image)); ?>"
               data-thumbnail="<?php echo esc_attr($storage->get_image_url($image, 'thumb')); ?>"
               data-image-id="<?php echo esc_attr($image->{$image->id_field}); ?>"
               data-title="<?php echo esc_attr($image->alttext); ?>"
               data-description="<?php echo esc_attr(stripslashes($image->description)); ?>"
               <?php echo $effect_code ?>>
                <img
                    title="<?php echo esc_attr($image->alttext)?>"
                    alt="<?php echo esc_attr($image->alttext)?>"
                    src="<?php echo esc_attr($storage->get_image_url($image, $thumbnail_size_name, TRUE))?>"
                    width="<?php echo esc_attr($thumb_size['width'])?>"
                    height="<?php echo esc_attr($thumb_size['height'])?>"
                    style="max-width:none;"
                />
            </a>
        </div>

Thanks for any guidance.
Antonella

https://wordpress.org/plugins/nextgen-gallery/