XML forms: remove duplicate addEventListener DOMAttrModified with capture true

since commit b2a54aa2e4d215edc30cfecc397eeb3eeff1e5bc
Author: Vladimir Glazounov <vg@openoffice.org>
Date:   Wed Mar 23 10:34:34 2005 +0000

Change-Id: I8f511d1efa0e2ee713d1e7c145cc60f4945aa8cb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151983
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
diff --git a/forms/source/xforms/binding.cxx b/forms/source/xforms/binding.cxx
index b9f111a..93952e0 100644
--- a/forms/source/xforms/binding.cxx
+++ b/forms/source/xforms/binding.cxx
@@ -469,8 +469,6 @@ static void lcl_addListenerToNode( const Reference<XNode>& xNode,
                               xListener, false );
    xTarget->addEventListener( "DOMAttrModified",
                               xListener, true );
    xTarget->addEventListener( "DOMAttrModified",
                               xListener, true );
    xTarget->addEventListener( "xforms-generic",
                               xListener, true );
}