Hi Christoph,

Thank you for your purchase.

You can use this CSS code to hide those pagination buttons, just add this code in Custom wpDataTables CSS under the "Custom JS AND CSS" in main settings of wpdatatables.

.wpDataTablesWrapper .dataTables_paginate{
display: none !important;
}

Also for our upcoming update the plugin will automatically hide those buttons if you choose to display all the data from the table.