tdf#143148: Use pragma once instead of include guards

Change-Id: I43a2140dab6203e58547710f2bf8530ff72d53d6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/204325
Tested-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>
Tested-by: Jenkins
Reviewed-by: Ilmari Lauhakangas <ilmari.lauhakangas@libreoffice.org>

sd/source/console/PresenterController.hxx

@@ -17,8 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERCONTROLLER_HXX
-#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERCONTROLLER_HXX
+#pragma once
 
 #include "PresenterAccessibility.hxx"
 #include "PresenterPaneContainer.hxx"
@@ -215,6 +214,4 @@ private:
 
 } // end of namespace ::sdext::presenter
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sd/source/console/PresenterNotesView.hxx

@@ -17,8 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERNOTESVIEW_HXX
-#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERNOTESVIEW_HXX
+#pragma once
 
 #include "PresenterController.hxx"
 #include "PresenterToolBar.hxx"
@@ -153,6 +152,4 @@ private:
 
 } // end of namespace ::sdext::presenter
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sfx2/source/inc/openurlhint.hxx

@@ -17,8 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#ifndef INCLUDED_SFX2_STRINGHINT_HXX
-#define INCLUDED_SFX2_STRINGHINT_HXX
+#pragma once
 
 #include <svl/hint.hxx>
 #include <rtl/ustring.hxx>
@@ -33,6 +32,4 @@ public:
     virtual ~SfxOpenUrlHint() override;
 };
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

sfx2/source/inc/preview.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_SOURCE_INC_PREVIEW_HXX
-#define INCLUDED_SFX2_SOURCE_INC_PREVIEW_HXX
+
+#pragma once
 
 #include <vcl/weld/customweld.hxx>
 
@@ -36,6 +36,4 @@ public:
     static void ImpPaint(vcl::RenderContext& rRenderContext, GDIMetaFile* pFile);
 };
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

svx/inc/GalleryControl.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_SVX_INC_GALLERYCONTROL_HXX
-#define INCLUDED_SVX_INC_GALLERYCONTROL_HXX
+
+#pragma once
 
 #include <config_options.h>
 #include <sfx2/sidebar/PanelLayout.hxx>
@@ -41,6 +41,4 @@ private:
 
 } // end of namespace svx::sidebar
 
-#endif
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */