Haiku: Include files cleanup in cmCTest

* No need to use a different path from the BeOS one, which still works.
Applied-by: Rolf Eike Beer <eike@sf-mail.de>

Source/cmCTest.cxx

@@ -53,14 +53,10 @@
 #include <cm_zlib.h>
 #include <cmsys/Base64.h>
 
-#if defined(__BEOS__)
+#if defined(__BEOS__) || defined(__HAIKU__)
 #include <be/kernel/OS.h>   /* disable_debugger() API. */
 #endif
 
-#if defined(__HAIKU__)
-#include <os/kernel/OS.h>   /* disable_debugger() API. */
-#endif
-
 
 #define DEBUGOUT std::cout << __LINE__ << " "; std::cout
 #define DEBUGERR std::cerr << __LINE__ << " "; std::cerr