fix comments

Author: xiao.dong

src/iceberg/manifest_adapter.h

@@ -23,13 +23,12 @@
 /// Base class of adapter for v1v2v3v4 metadata.
 
 #include "iceberg/arrow_c_data.h"
-#include "iceberg/manifest_entry.h"
-#include "iceberg/manifest_list.h"
 #include "iceberg/result.h"
+#include "iceberg/type_fwd.h"
 
 namespace iceberg {
 
-// \brief Base class of adapter for v1v2v3v4 metadata.
+// \brief Base class to append manifest metadata to Arrow array.
 class ICEBERG_EXPORT ManifestAdapter {
  public:
   ManifestAdapter() = default;

src/iceberg/manifest_writer.cc

@@ -54,13 +54,13 @@ Status ManifestWriter::Close() {
 }
 
 Result<std::unique_ptr<Writer>> OpenFileWriter(std::string_view location,
-                                               const std::shared_ptr<Schema> schema,
+                                               std::shared_ptr<Schema> schema,
                                                std::shared_ptr<FileIO> file_io) {
   ICEBERG_ASSIGN_OR_RAISE(
       auto writer,
-      WriterFactoryRegistry::Open(
-          FileFormatType::kAvro,
-          {.path = std::string(location), .schema = schema, .io = std::move(file_io)}));
+      WriterFactoryRegistry::Open(FileFormatType::kAvro, {.path = std::string(location),
+                                                          .schema = std::move(schema),
+                                                          .io = std::move(file_io)}));
   return writer;
 }
 

src/iceberg/v1_metadata.h

@@ -22,8 +22,6 @@
 /// \file iceberg/v1_metadata.h
 
 #include "iceberg/manifest_adapter.h"
-#include "iceberg/manifest_entry.h"
-#include "iceberg/manifest_list.h"
 
 namespace iceberg {
 

src/iceberg/v2_metadata.h

@@ -22,8 +22,6 @@
 /// \file iceberg/v2_metadata.h
 
 #include "iceberg/manifest_adapter.h"
-#include "iceberg/manifest_entry.h"
-#include "iceberg/manifest_list.h"
 
 namespace iceberg {
 

src/iceberg/v3_metadata.h

@@ -22,8 +22,6 @@
 /// \file iceberg/v3_metadata.h
 
 #include "iceberg/manifest_adapter.h"
-#include "iceberg/manifest_entry.h"
-#include "iceberg/manifest_list.h"
 
 namespace iceberg {