scss how to remove selector?

Question

Sass

selector-replace('.a .b .c .d', '.a', '');

This design doesn't work. How can I remove the selector by name?

There is such a function for deleting by index:

@function remove-selector($sel) {
    @return '';
}

@function selector-nth($sel, $n, $f, $args...) {
    $collector: ();
    @each $s in $sel {
        $modified: call($f, nth($s, $n), $args...);
        $collector: append($collector, set-nth($s, $n, $modified), comma);
    }

    @return $collector;
}

selector-nth('.a .b .c .d', -2, remove-selector)

How can I change it to search by name?