This can be used in a parent or child but it’s particularly helpful for child themes where the parent has more sidebars than you need.
<?php
// This is amazingly helpful for child themes.
function remove_sidebar() {
<span style="white-space: pre;"> </span>unregister_sidebar('SIDEBAR_ID');
}
add_action( 'admin_init', 'remove_sidebar');
?>
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