delete unused constructor

Author: KirillKurdyukov

table/src/main/java/tech/ydb/table/impl/BaseSession.java

@@ -839,11 +839,7 @@ private static Result<TableDescription> mapDescribeTable(Result<YdbTable.Describ
             YdbTable.ColumnMeta column = desc.getColumns(i);
             Type type = ProtoType.fromPb(column.getType());
 
-            if (column.hasFromLiteral()) {
-                PrimitiveValue primitiveValue = (PrimitiveValue)
-                        ProtoValue.fromPb(type, column.getFromLiteral().getValue());
-                description.addColumn(new TableColumn(column.getName(), type, column.getFamily(), primitiveValue));
-            } else if (column.hasFromSequence()) {
+            if (column.hasFromSequence()) {
                 YdbTable.SequenceDescription pbSeq = column.getFromSequence();
                 SequenceDescription.Builder sequenceDescriptionBuilder = new SequenceDescription.Builder();