[host] simplify dll loading

host/Util.h

@@ -23,45 +23,10 @@ Place, Suite 330, Boston, MA 02111-1307 USA
 #include <inttypes.h>
 #include <tmmintrin.h>
 
-#include "common\debug.h"
-
 
 class Util
 {
 public:
-  static std::string GetSystemRoot()
-  {
-    std::string defaultPath;
-
-    size_t pathSize;
-    char *libPath;
-
-    if (_dupenv_s(&libPath, &pathSize, "SystemRoot") != 0)
-    {
-      DEBUG_ERROR("Unable to get the SystemRoot environment variable");
-      return defaultPath;
-    }
-
-    if (!pathSize)
-    {
-      DEBUG_ERROR("The SystemRoot environment variable is not set");
-      return defaultPath;
-    }
-#ifdef _WIN64
-    defaultPath = std::string(libPath) + "\\System32";
-#else
-    if (IsWow64())
-    {
-      defaultPath = std::string(libPath) + "\\Syswow64";
-    }
-    else
-    {
-      defaultPath = std::string(libPath) + "\\System32";
-    }
-#endif
-    return defaultPath;
-  }
-
   static inline void BGRAtoRGB(uint8_t * orig, size_t imagesize, uint8_t * dest)
   {
     assert((uintptr_t)orig % 16 == 0);