Update src/iceberg/catalog.h

Co-authored-by: Gang Wu <ustcwg@gmail.com>

Author: HeartLinked

src/iceberg/catalog.h

@@ -231,7 +231,7 @@ class ICEBERG_EXPORT Catalog {
   /// \param identifier a table identifier
   /// \param schema a schema
   /// \return the builder to create a table or start a create/replace transaction
-  virtual std::unique_ptr<class TableBuilder> BuildTable(
+  virtual std::unique_ptr<TableBuilder> BuildTable(
       const TableIdentifier& identifier, const Schema& schema) const = 0;
 };