Remove erroneous stability attribute.

This outer attribute doesn't actually apply to anything is seems
to be incorrect in what it is saying.

diff --git a/src/libcore/tuple.rs b/src/libcore/tuple.rs
index 4aca830cb941390c7846d491a1f9bb847b19dbf9..5baeae236b33ef573d6e37f793db6348ff7d5ab7 100644 (file)
--- a/src/libcore/tuple.rs
+++ b/src/libcore/tuple.rs
@@ -35,9 +35,6 @@
 
 #![stable]
 
-#[unstable = "this is just a documentation module and should not be part \
-              of the public api"]
-
 use clone::Clone;
 use cmp::*;
 use cmp::Ordering::*;