tdf#124176: Use pragma once instead of include guards

Started to fix typo, eventually #pragma

Change-Id: If79b618db5fd50bc8220927ba1866259b203860d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92935
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
diff --git a/include/comphelper/evtmethodhelper.hxx b/include/comphelper/evtmethodhelper.hxx
index 2539ea0..7c900a1 100644
--- a/include/comphelper/evtmethodhelper.hxx
+++ b/include/comphelper/evtmethodhelper.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_COMPHELPER_EVTMETHODHELPER_HXX
#define INCLUDED_COMPHELPER_EVTMETHODHELPER_HXX

#pragma once

#include <com/sun/star/uno/Sequence.h>
#include <comphelper/comphelperdllapi.h>
@@ -29,6 +29,4 @@

}   // namespace comphelper

#endif // COMPHELPER_EVENTMEHODHELPER_HXX

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