Make libnosys function stubs part of libnacl

src/untrusted/nacl/stubs/symlink.c

Index: src/untrusted/nacl/stubs/symlink.c
diff --git a/src/untrusted/nosys/symlink.c b/src/untrusted/nacl/stubs/symlink.c
similarity index 82%
rename from src/untrusted/nosys/symlink.c
rename to src/untrusted/nacl/stubs/symlink.c
index 34fcf96264563d542cdff331efb99e79e5912c0e..f5f709908c55dcfb7ef695a9b5f27580e03917b0 100644
--- a/src/untrusted/nosys/symlink.c
+++ b/src/untrusted/nacl/stubs/symlink.c
@@ -16,6 +16,3 @@ int symlink(const char *oldpath, const char *newpath) {
   errno = ENOSYS;
   return -1;
 }
-
-#include "native_client/src/untrusted/nosys/warning.h"
-stub_warning(symlink);