remove old_iter

the `test/run-pass/class-trait-bounded-param.rs` test was xfailed and
written in an ancient dialect of Rust so I've just removed it

this also removes `to_vec` from DList because it's provided by
`std::iter::to_vec`

an Iterator implementation is added for OptVec but some transitional
internal iterator methods are still left

1 files changed, 0 insertions, 1 deletions

diff --git a/src/libstd/rt/uvio.rs b/src/libstd/rt/uvio.rs
index 070ccf7fb44..f4a79934e7e 100644
--- a/src/libstd/rt/uvio.rs
+++ b/src/libstd/rt/uvio.rs
@@ -15,7 +15,6 @@ use super::io::net::ip::IpAddr;
 use super::uv::*;
 use super::rtio::*;
 use ops::Drop;
-use old_iter::CopyableIter;
 use cell::Cell;
 use cast::transmute;
 use super::sched::{Scheduler, local_sched};