### Description

The [bootstrap checks docs for 8.1](https://github.com/elastic/elasticsearch/blob/8.1/docs/reference/setup/bootstrap-checks.asciidoc#system-call-filter-check) still have a [section for disabling system call filters](https://www.elastic.co/guide/en/elasticsearch/reference/8.1/_system_call_filter_check.html) even though that setting was removed in 8.0 (#72848) and its removal is [listed in the breaking changes](https://www.elastic.co/guide/en/elastic-stack/8.0/elasticsearch-breaking-changes.html)


server/src/test/java/org/elasticsearch/bootstrap/BootstrapChecksTests.java
BoundTransportAddress boundTransportAddress = mock(BoundTransportAddress.class);
        when(boundTransportAddress.boundAddresses()).thenReturn(transportAddresses.toArray(new TransportAddress[0]));
        when(boundTransportAddress.publishAddress()).thenReturn(publishAddress);
        BootstrapChecks.check(emptyContext, boundTransportAddress, Collections.emptyList());
    }
    public void testNoLogMessageInNonProductionMode() throws NodeValidationException {
        final Logger logger = mock(Logger.class);
        BootstrapChecks.check(emptyContext, false, Collections.emptyList(), logger);
        verifyNoMoreInteractions(logger);
    }
    public void testLogMessageInProductionMode() throws NodeValidationException {
        final Logger logger = mock(Logger.class);
        BootstrapChecks.check(emptyContext, true, Collections.emptyList(), logger);
        verify(logger).info("bound or publishing to a non-loopback address, enforcing bootstrap checks");
        verifyNoMoreInteractions(logger);
    }
    public void testEnforceLimitsWhenBoundToNonLocalAddress() {
        final List<TransportAddress> transportAddresses = new ArrayList<>();
        final TransportAddress nonLocalTransportAddress = buildNewFakeTransportAddress();
        transportAddresses.add(nonLocalTransportAddress);
        for (int i = 0; i < randomIntBetween(0, 7); i++) {
            final TransportAddress randomTransportAddress = randomBoolean()
                ? buildNewFakeTransportAddress()
                : new TransportAddress(InetAddress.getLoopbackAddress(), i);
            transportAddresses.add(randomTransportAddress);
        }
        final TransportAddress publishAddress = randomBoolean()
            ? buildNewFakeTransportAddress()
            : new TransportAddress(InetAddress.getLoopbackAddress(), 0);
        final BoundTransportAddress boundTransportAddress = mock(BoundTransportAddress.class);