logic: Don't store CxxCompilerHeaderPath in Global Include Paths

* show path in Global Include Paths preferences
* add to CXX indexer commands
* add migration to remove from app settings

src/app/main.cpp

@@ -31,7 +31,6 @@
 #include "UserPaths.h"
 #include "utility.h"
 #include "utilityApp.h"
-#include "utilityCxx.h"
 #include "utilityPathDetection.h"
 #include "Version.h"
 #include "productVersion.h"
@@ -135,9 +134,6 @@ void prefillCxxHeaderPaths()
 		LOG_INFO("Prefilling header search paths");
 		std::shared_ptr<CombinedPathDetector> cxxHeaderDetector = utility::getCxxHeaderPathDetector();
 		std::vector<FilePath> paths = cxxHeaderDetector->getPaths();
-
-		paths = utility::replaceOrAddCxxCompilerHeaderPath(paths);
-
 		if (!paths.empty())
 		{
 			MessageStatus(L"Ran C/C++ header path detection, found " + std::to_wstring(paths.size()) + L" path" +