Update QueryTests.java

Author: Paultagoras

client-v2/src/test/java/com/clickhouse/client/query/QueryTests.java

@@ -11,7 +11,6 @@
 import com.clickhouse.client.ClickHouseResponse;
 import com.clickhouse.client.api.Client;
 import com.clickhouse.client.api.DataTypeUtils;
-import com.clickhouse.client.api.OperationStatistics;
 import com.clickhouse.client.api.enums.Protocol;
 import com.clickhouse.client.api.data_formats.ClickHouseBinaryFormatReader;
 import com.clickhouse.client.api.data_formats.NativeFormatReader;