Use SAL_WNODEPRECATED_DECLARATIONS_(PUSH|POP)

Change-Id: I2810d22e8f5e1c81647b9e9b15519de65939630a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163895
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

helpcompiler/source/HelpCompiler.cxx

@@ -39,21 +39,9 @@ HelpCompiler::HelpCompiler(StreamTable &in_streamTable, fs::path in_inputFile,
     src(std::move(in_src)), zipdir(std::move(in_zipdir)), module(std::move(in_module)), lang(std::move(in_lang)), resCompactStylesheet(std::move(in_resCompactStylesheet)),
     resEmbStylesheet(std::move(in_resEmbStylesheet)), bExtensionMode( in_bExtensionMode )
 {
-#ifdef __GNUC__
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-#endif
-#if defined(_MSC_VER)
-#pragma warning(push)
-#pragma warning(disable:4996)
-#endif
+SAL_WNODEPRECATED_DECLARATIONS_PUSH
     xmlKeepBlanksDefaultValue = 0;
-#if defined(_MSC_VER)
-#pragma warning(pop)
-#endif
-#ifdef __GNUC__
-#pragma GCC diagnostic pop
-#endif
+SAL_WNODEPRECATED_DECLARATIONS_POP
     char* os = getenv("OS");
     if (os)
     {