Make libnosys function stubs part of libnacl

src/untrusted/nacl/stubs/fchmod.c

Index: src/untrusted/nacl/stubs/fchmod.c
diff --git a/src/untrusted/nosys/fchmod.c b/src/untrusted/nacl/stubs/fchmod.c
similarity index 82%
rename from src/untrusted/nosys/fchmod.c
rename to src/untrusted/nacl/stubs/fchmod.c
index 287d3fcb0f9d48e410039aa2bbbad3ab8602ff81..65b74228c53445a2acd86c0019235940ffb32176 100644
--- a/src/untrusted/nosys/fchmod.c
+++ b/src/untrusted/nacl/stubs/fchmod.c
@@ -17,6 +17,3 @@ int fchmod(int filedes, mode_t mode) {
   errno = ENOSYS;
   return -1;
 }
-
-#include "native_client/src/untrusted/nosys/warning.h"
-stub_warning(fchmod);