tdf#143148 Use pragma once instead of include guards in the header file

Change-Id: I6566cfb722bbe2779e9a5b32fa83f17353457dc3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/141351
Tested-by: Ilmari Lauhakangas <[email protected]>
Reviewed-by: Ilmari Lauhakangas <[email protected]>

Author: Calvince Otieno

sw/inc/IGrammarContact.hxx

@@ -17,8 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#ifndef INCLUDED_SW_INC_IGRAMMARCONTACT_HXX
-#define INCLUDED_SW_INC_IGRAMMARCONTACT_HXX
+#pragma once
 
 struct SwPosition;
 class SwTextNode;
@@ -73,6 +72,4 @@ IGrammarContact* getGrammarContact(const SwTextNode&);
 */
 void finishGrammarCheck(SwTextNode&);
 
-#endif // INCLUDED_SW_INC_IGRAMMARCONTACT_HXX
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */