Remove remarked import

Author: mzitnik

flink-connector-clickhouse-base/src/main/java/com/clickhouse/utils/Serialize.java

@@ -13,8 +13,6 @@
 import java.util.HashMap;
 import java.util.Map;
 
-//import static com.clickhouse.client.api.data_formats.internal.SerializerUtils.writeDate;
-
 public class Serialize {
 
     public static boolean writePrimitiveValuePreamble(OutputStream out, boolean defaultsSupport, boolean isNullable, ClickHouseDataType dataType, boolean hasDefault, String column) throws IOException {