diff --git a/ICSharpCode.Decompiler/Util/ResXResourceWriter.cs b/ICSharpCode.Decompiler/Util/ResXResourceWriter.cs
index 54e67fc98..1417718aa 100644
--- a/ICSharpCode.Decompiler/Util/ResXResourceWriter.cs
+++ b/ICSharpCode.Decompiler/Util/ResXResourceWriter.cs
@@ -294,162 +294,6 @@ namespace ICSharpCode.Decompiler.Util
 			AddResource(name, value, string.Empty);
 		}
 
-		public void AddMetadata(string name, string value)
-		{
-			if (name == null)
-				throw new ArgumentNullException(nameof(name));
-
-			if (value == null)
-				throw new ArgumentNullException(nameof(value));
-
-			if (written)
-				throw new InvalidOperationException("The resource is already generated.");
-
-			if (writer == null)
-				InitWriter();
-
-			writer.WriteStartElement("metadata");
-			writer.WriteAttributeString("name", name);
-			writer.WriteAttributeString("xml:space", "preserve");
-
-			writer.WriteElementString("value", value);
-
-			writer.WriteEndElement();
-		}
-
-		public void AddMetadata(string name, byte[] value)
-		{
-			if (name == null)
-				throw new ArgumentNullException(nameof(name));
-
-			if (value == null)
-				throw new ArgumentNullException(nameof(value));
-
-			if (written)
-				throw new InvalidOperationException("The resource is already generated.");
-
-			if (writer == null)
-				InitWriter();
-
-			writer.WriteStartElement("metadata");
-			writer.WriteAttributeString("name", name);
-
-			writer.WriteAttributeString("type", value.GetType().AssemblyQualifiedName);
-
-			writer.WriteStartElement("value");
-			WriteNiceBase64(value, 0, value.Length);
-			writer.WriteEndElement();
-
-			writer.WriteEndElement();
-		}
-
-		public void AddMetadata(string name, object value)
-		{
-			if (value is string)
-			{
-				AddMetadata(name, (string)value);
-				return;
-			}
-
-			if (value is byte[])
-			{
-				AddMetadata(name, (byte[])value);
-				return;
-			}
-
-			if (name == null)
-				throw new ArgumentNullException(nameof(name));
-
-			if (value == null)
-				throw new ArgumentNullException(nameof(value));
-
-			if (!value.GetType().IsSerializable)
-				throw new InvalidOperationException(String.Format("The element '{0}' of type '{1}' is not serializable.", name, value.GetType().Name));
-
-			if (written)
-				throw new InvalidOperationException("The resource is already generated.");
-
-			if (writer == null)
-				InitWriter();
-
-			Type type = value.GetType();
-
-			TypeConverter converter = TypeDescriptor.GetConverter(value);
-			if (converter != null && converter.CanConvertTo(typeof(string)) && converter.CanConvertFrom(typeof(string)))
-			{
-				string str = (string)converter.ConvertToInvariantString(value);
-				writer.WriteStartElement("metadata");
-				writer.WriteAttributeString("name", name);
-				if (type != null)
-					writer.WriteAttributeString("type", type.AssemblyQualifiedName);
-				writer.WriteStartElement("value");
-				writer.WriteString(str);
-				writer.WriteEndElement();
-				writer.WriteEndElement();
-				writer.WriteWhitespace("\n  ");
-				return;
-			}
-
-			if (converter != null && converter.CanConvertTo(typeof(byte[])) && converter.CanConvertFrom(typeof(byte[])))
-			{
-				byte[] b = (byte[])converter.ConvertTo(value, typeof(byte[]));
-				writer.WriteStartElement("metadata");
-				writer.WriteAttributeString("name", name);
-
-				if (type != null)
-				{
-					writer.WriteAttributeString("type", type.AssemblyQualifiedName);
-					writer.WriteAttributeString("mimetype", ByteArraySerializedObjectMimeType);
-					writer.WriteStartElement("value");
-					WriteNiceBase64(b, 0, b.Length);
-				}
-				else
-				{
-					writer.WriteAttributeString("mimetype", BinSerializedObjectMimeType);
-					writer.WriteStartElement("value");
-					writer.WriteBase64(b, 0, b.Length);
-				}
-
-				writer.WriteEndElement();
-				writer.WriteEndElement();
-				return;
-			}
-
-			MemoryStream ms = new MemoryStream();
-			BinaryFormatter fmt = new BinaryFormatter();
-			try
-			{
-				fmt.Serialize(ms, value);
-			}
-			catch (Exception e)
-			{
-				throw new InvalidOperationException("Cannot add a " + value.GetType() +
-									 "because it cannot be serialized: " +
-									 e.Message);
-			}
-
-			writer.WriteStartElement("metadata");
-			writer.WriteAttributeString("name", name);
-
-			if (type != null)
-			{
-				writer.WriteAttributeString("type", type.AssemblyQualifiedName);
-				writer.WriteAttributeString("mimetype", ByteArraySerializedObjectMimeType);
-				writer.WriteStartElement("value");
-				WriteNiceBase64(ms.GetBuffer(), 0, ms.GetBuffer().Length);
-			}
-			else
-			{
-				writer.WriteAttributeString("mimetype", BinSerializedObjectMimeType);
-				writer.WriteStartElement("value");
-				writer.WriteBase64(ms.GetBuffer(), 0, ms.GetBuffer().Length);
-			}
-
-			writer.WriteEndElement();
-			writer.WriteEndElement();
-			ms.Close();
-		}
-
 		public void Close()
 		{
 			if (writer != null)