Remove GetDocRelativePath function

Help is always located in the same folder as binary that is using it.

Src/StartMenu/StartMenuDLL/dllmain.cpp

@@ -45,11 +45,6 @@ static int g_LoadDialogs[]=
 	0
 };
 
-const wchar_t *GetDocRelativePath( void )
-{
-	return DOC_PATH;
-}
-
 static HANDLE g_DllInitThread;
 
 static DWORD CALLBACK DllInitThread( void* )

Src/StartMenu/StartMenuDLL/stdafx.h

@@ -22,12 +22,6 @@
 #include <atlstr.h>
 #include <atlwin.h>
 
-#ifdef BUILD_SETUP
-#define DOC_PATH L""
-#else
-#define DOC_PATH L"..\\..\\Docs\\Help\\"
-#endif
-
 #include "StringUtils.h"
 #include "TrackResources.h"
 #include "Assert.h"