### Description

Currently, support for time zones is very limited. 
We should remove it for now and re-add it when it'll be supported more broadly, at a later time. 
x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/action/EsqlQueryRequest.java
import org.elasticsearch.action.CompositeIndicesRequest;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.query.AbstractQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.tasks.CancellableTask;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.tasks.TaskId;
import org.elasticsearch.xcontent.ConstructingObjectParser;
import org.elasticsearch.xcontent.ObjectParser;
import org.elasticsearch.xcontent.ParseField;
import org.elasticsearch.xcontent.XContentLocation;
import org.elasticsearch.xcontent.XContentParseException;
import org.elasticsearch.xcontent.XContentParser;
import org.elasticsearch.xpack.esql.parser.ContentLocation;
import org.elasticsearch.xpack.esql.parser.TypedParamValue;
import org.elasticsearch.xpack.esql.plugin.QueryPragmas;
import java.io.IOException;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.function.Supplier;
import static org.elasticsearch.action.ValidateActions.addValidationError;
import static org.elasticsearch.common.xcontent.XContentParserUtils.parseFieldsValue;
import static org.elasticsearch.xcontent.ConstructingObjectParser.constructorArg;
import static org.elasticsearch.xcontent.ObjectParser.ValueType.VALUE_ARRAY;
public class EsqlQueryRequest extends ActionRequest implements CompositeIndicesRequest {