fix build

Author: hubgeter

fe/fe-core/src/main/java/org/apache/doris/datasource/iceberg/source/IcebergScanNode.java

@@ -85,7 +85,6 @@
 import org.apache.iceberg.expressions.ResidualEvaluator;
 import org.apache.iceberg.io.CloseableIterable;
 import org.apache.iceberg.io.CloseableIterator;
-import org.apache.iceberg.types.Conversions;
 import org.apache.iceberg.util.ScanTaskUtil;
 import org.apache.iceberg.util.TableScanUtil;
 import org.apache.logging.log4j.LogManager;