Frozen indices are deprecated which makes all the [SQL features supporting frozen indices](https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-index-frozen.html) obsolete.

This includes:

* `index_include_frozen` request parameter in the `_sql` endpoint
* `index.include.frozen` (J|O)DBC driver settings
* `SHOW TABLES INCLUDE FROZEN` queries and the `FROZEN INDEX` kind in the corresponding response
* The `FROZEN` modifier in `FROM` clauses (as in `SELECT * FROM FROZEN archive`)

`_search` raises a deprecation warning when frozen indices are being searched with `ignore_throttled=false`. SQL could do the same when the `index_include_frozen` request parameter is set or when the `FROZEN` keyword is used.

Relates to https://github.com/elastic/elasticsearch/issues/70192
x-pack/plugin/sql/sql-action/src/test/java/org/elasticsearch/xpack/sql/action/SqlQueryRequestTests.java
private TimeValue randomTVGreaterThan(TimeValue min) {
        TimeValue value;
        do {
            value = randomTV();
        } while (value.getMillis() < min.getMillis());
        return value;
    }
    public List<SqlTypedParamValue> randomParameters() {
        if (randomBoolean()) {
            return Collections.emptyList();
        } else {
            int len = randomIntBetween(1, 10);
            List<SqlTypedParamValue> arr = new ArrayList<>(len);
            boolean hasExplicitType = Mode.isDriver(this.requestInfo.mode());
            for (int i = 0; i < len; i++) {
                @SuppressWarnings("unchecked")
                Supplier<SqlTypedParamValue> supplier = randomFrom(
                    () -> new SqlTypedParamValue("boolean", randomBoolean(), hasExplicitType),
                    () -> new SqlTypedParamValue("long", randomLong(), hasExplicitType),
                    () -> new SqlTypedParamValue("double", randomDouble(), hasExplicitType),
                    () -> new SqlTypedParamValue("null", null, hasExplicitType),
                    () -> new SqlTypedParamValue("keyword", randomAlphaOfLength(10), hasExplicitType)
                );
                arr.add(supplier.get());
            }
            return Collections.unmodifiableList(arr);
        }
    }
}