fix

Author: JingsongLi

paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergDataFileMeta.java

@@ -87,9 +87,6 @@ public static Content fromId(int id) {
     private final Long contentOffset;
     private final Long contentSizeInBytes;
 
-    // only used for iceberg migrate
-    private long schemaId = 0;
-
     IcebergDataFileMeta(
             Content content,
             String filePath,
@@ -279,15 +276,6 @@ public Long contentSizeInBytes() {
         return contentSizeInBytes;
     }
 
-    public long schemaId() {
-        return schemaId;
-    }
-
-    public IcebergDataFileMeta withSchemaId(long schemaId) {
-        this.schemaId = schemaId;
-        return this;
-    }
-
     public static RowType schema(RowType partitionType) {
         List<DataField> fields = new ArrayList<>();
         fields.add(new DataField(134, "content", DataTypes.INT().notNull()));