Do you want to remove description text from category archive pages when using the Astra Theme? This can be implemented with a filter hook targetting using the code shared below.
Code Snippet: Remove category description text
In the WordPress Dashboard, go to Appearance > Theme Editor and open the functions.php file of your Astra child theme. Then add the following code at the end. Alternatively, you can use code snippets plugin for adding custom code.
add_filter( 'get_the_archive_description', '__return_null');