[gxml] Removed SerializableEnum from SerializableObjectModel

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 88f0acb66e877c182d782084eeed0b0713353a2b
Author: Daniel Espinosa <esodan gmail com>
Date:   Sun Nov 1 12:55:56 2015 -0600

    Removed SerializableEnum from SerializableObjectModel

 gxml/SerializableEnum.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gxml/SerializableEnum.vala b/gxml/SerializableEnum.vala
index c406628..7d1a292 100644
--- a/gxml/SerializableEnum.vala
+++ b/gxml/SerializableEnum.vala
@@ -37,7 +37,7 @@ public errordomain GXml.SerializableEnumError {
  * an extension element in the enumeration and return it when the supported values
  * are not met with the string representation in the property.
  */
-public class GXml.SerializableEnum : SerializableObjectModel, SerializableProperty
+public class GXml.SerializableEnum : Object, SerializableProperty
 {
   protected string _val = null;
   protected GLib.Type _enumtype;
@@ -77,5 +77,5 @@ public class GXml.SerializableEnum : SerializableObjectModel, SerializableProper
   }
   public string get_serializable_property_value () { return _val; }
   public void set_serializable_property_value (string? val) { _val = val; }
-  public override string to_string () { return _val; }
+  public string to_string () { return _val; }
 }
\ No newline at end of file