Make libnosys function stubs part of libnacl

src/untrusted/nacl/stubs/getwd.c

Index: src/untrusted/nacl/stubs/getwd.c
diff --git a/src/untrusted/nosys/getwd.c b/src/untrusted/nacl/stubs/getwd.c
similarity index 81%
rename from src/untrusted/nosys/getwd.c
rename to src/untrusted/nacl/stubs/getwd.c
index c84ec05fad5e925c74134467b46128a76d4e6e26..119eac69d2abf91ccc5a396f2cadb2c2eb76a779 100644
--- a/src/untrusted/nosys/getwd.c
+++ b/src/untrusted/nacl/stubs/getwd.c
@@ -16,6 +16,3 @@ char *getwd(char *buf) {
   errno = ENOSYS;
   return NULL;
 }
-
-#include "native_client/src/untrusted/nosys/warning.h"
-stub_warning(getwd);