how to disable autocomplete search on wpLink?

Question

OP linked it in a comment above, but here’s the code used.

Note This doesn’t actually disable autocomplete, it simply removes all of the results before they’re displayed (and I added some CSS to hide the loading icon). They’re still fetched by WP, just overridden with an empty array.

add_filter( 'wp_link_query', 'remove_results_from_link_builder_autocomplete', 10, 2 );
function remove_results_from_link_builder_autocomplete( $results, $query ) {
    return array();
}

You’ll also likely want some CSS to hide the autocomplete loading icon:

input[type=email].ui-autocomplete-loading,
input[type=text].ui-autocomplete-loading {
    background-image: none;
}

If you’re also removing this functionality in the Link Builder popup editor (after you click the gear icon), here’s some additional CSS to hide the whole search section.

#wplink-link-existing-content,
#search-panel {
    display: none;
}
#wp-link-wrap {
     height: 225px;
}