[latexila] Structure: remove hack due to old Vala bug

[SÃbastien Wilmet <swilmet src gnome org>]

commit a9527968f33aa1026c6859680fe593185f772a06
Author: SÃbastien Wilmet <swilmet src gnome org>
Date:   Fri Jun 8 23:31:37 2012 +0200

    Structure: remove hack due to old Vala bug

 src/document_structure.vala |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)
---
diff --git a/src/document_structure.vala b/src/document_structure.vala
index fa9d9bc..3b38f96 100644
--- a/src/document_structure.vala
+++ b/src/document_structure.vala
@@ -1077,12 +1077,7 @@ public class DocumentStructure : GLib.Object
             return false;
 
         StructType? markup_type = get_markup_type (markup_name);
-        if (markup_type == null)
-            return false;
-
-        // HACK see https://bugzilla.gnome.org/show_bug.cgi?id=652781
-        StructType markup_type_hack = markup_type;
-        if ((int) type != (int) markup_type_hack)
+        if (markup_type == null || type != markup_type)
             return false;
 
         /* Get the new markup name */