container: remove internal iterators from Map

the maps are being migrated to external iterators

src/test/run-pass/class-impl-very-parameterized-trait.rs

@@ -61,29 +61,8 @@ impl<T> Mutable for cat<T> {
 }
 
 impl<T> Map<int, T> for cat<T> {
-    fn each<'a>(&'a self, f: &fn(&int, &'a T) -> bool) -> bool {
-        let mut n = int::abs(self.meows);
-        while n > 0 {
-            if !f(&n, &self.name) { return false; }
-            n -= 1;
-        }
-        return true;
-    }
-
     fn contains_key(&self, k: &int) -> bool { *k <= self.meows }
 
-    fn each_key(&self, f: &fn(v: &int) -> bool) -> bool {
-        self.each(|k, _| f(k))
-    }
-
-    fn each_value<'a>(&'a self, f: &fn(v: &'a T) -> bool) -> bool {
-        self.each(|_, v| f(v))
-    }
-
-    fn mutate_values(&mut self, _f: &fn(&int, &mut T) -> bool) -> bool {
-        fail!("nope")
-    }
-
     fn insert(&mut self, k: int, _: T) -> bool {
         self.meows += k;
         true