tdf#124176: Use pragma once instead of include guards

Change-Id: I6315560e8607f50fdcc64631a04163d032666fad
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87377
Tested-by: Jenkins
Reviewed-by: Muhammet Kara <muhammet.kara@collabora.com>
diff --git a/include/sfx2/lnkbase.hxx b/include/sfx2/lnkbase.hxx
index 535a6bc..b12c90c 100644
--- a/include/sfx2/lnkbase.hxx
+++ b/include/sfx2/lnkbase.hxx
@@ -16,8 +16,8 @@
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
#ifndef INCLUDED_SFX2_LNKBASE_HXX
#define INCLUDED_SFX2_LNKBASE_HXX

#pragma once

#include <rtl/ustring.hxx>
#include <sal/config.h>
@@ -168,6 +168,4 @@

}

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */