Template:CardTable2/doc/styles.css

/* Hide table-of-contents sections that are from the template, rather than the documentation */
.template-documentation .toc > ul > li:nth-child(1)/* English sets */,
.template-documentation .toc > ul > li:nth-child(2)/* Search categories */,
.template-documentation .toc > ul > li:nth-child(3)/* Other languages */,
.template-documentation .toc > ul > li:nth-child(4)/* Other language sets */,
.template-documentation .toc > ul > li:nth-child(5)/* Video games */ {
    display: none;
}