[gtk-doc] Don't show raw unions

[William Jon McCann <mccann src gnome org>]

commit 1305a0e204f5be00cb88c3ba1e06570111036cf2
Author: William Jon McCann <william jon mccann gmail com>
Date:   Wed Feb 12 19:19:06 2014 -0500

    Don't show raw unions
    
    Same reason as previous commit.

 gtkdoc-mkdb.in |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/gtkdoc-mkdb.in b/gtkdoc-mkdb.in
index 2c9d526..749b8f9 100755
--- a/gtkdoc-mkdb.in
+++ b/gtkdoc-mkdb.in
@@ -1825,11 +1825,6 @@ sub OutputUnion {
     $desc .= MakeIndexterms($symbol, $id);
     $desc .= "\n";
     $desc .= OutputSymbolExtraLinks($symbol);
-
-    # FIXME: we do more for structs
-    my $decl_out = &CreateValidSGML ($declaration);
-    $desc .= "<programlisting language=\"C\">$decl_out</programlisting>\n";
-
     $desc .= &MakeDeprecationNote($symbol);
 
     if (defined ($SymbolDocs{$symbol})) {