tdf#124176: Use pragma once instead of include guards

Change-Id: Ie396c62d7743918c36ee0a2041f26c7a7e70c802
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112945
Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
Tested-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
diff --git a/connectivity/source/drivers/firebird/Connection.hxx b/connectivity/source/drivers/firebird/Connection.hxx
index 9e2c9c2..be3dcf5 100644
--- a/connectivity/source/drivers/firebird/Connection.hxx
+++ b/connectivity/source/drivers/firebird/Connection.hxx
@@ -17,8 +17,7 @@
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_FIREBIRD_CONNECTION_HXX
#define INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_FIREBIRD_CONNECTION_HXX
#pragma once

#include <ibase.h>

@@ -239,6 +238,5 @@
        };

}
#endif // INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_FIREBIRD_CONNECTION_HXX

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