Remove unnecessary `#![feature]` attributes

src/libcollections/str.rs

@@ -506,8 +506,6 @@ pub fn slice_shift_char(&self) -> Option<(char, &str)> {
     ///
     /// # Examples
     /// ```
-    /// #![feature(str_split_at)]
-    ///
     /// let s = "Löwe 老虎 Léopard";
     /// let first_space = s.find(' ').unwrap_or(s.len());
     /// let (a, b) = s.split_at(first_space);

src/libcollections/vec.rs

@@ -753,8 +753,6 @@ pub fn is_empty(&self) -> bool { self.len() == 0 }
     /// # Examples
     ///
     /// ```
-    /// #![feature(split_off)]
-    ///
     /// let mut vec = vec![1,2,3];
     /// let vec2 = vec.split_off(1);
     /// assert_eq!(vec, [1]);

src/libcollections/vec_deque.rs

@@ -1319,8 +1319,6 @@ pub fn remove(&mut self, index: usize) -> Option<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(split_off)]
-    ///
     /// use std::collections::VecDeque;
     ///
     /// let mut buf: VecDeque<_> = vec![1,2,3].into_iter().collect();
@@ -1406,8 +1404,6 @@ pub fn append(&mut self, other: &mut Self) {
     /// # Examples
     ///
     /// ```
-    /// #![feature(vec_deque_retain)]
-    ///
     /// use std::collections::VecDeque;
     ///
     /// let mut buf = VecDeque::new();

src/libcollectionstest/lib.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 #![feature(ascii)]
-#![feature(append)]
 #![feature(binary_heap_extras)]
 #![feature(box_syntax)]
 #![feature(btree_range)]
@@ -29,18 +28,14 @@
 #![feature(set_recovery)]
 #![feature(slice_bytes)]
 #![feature(slice_splits)]
-#![feature(split_off)]
 #![feature(step_by)]
 #![feature(str_char)]
 #![feature(str_escape)]
 #![feature(str_match_indices)]
-#![feature(str_split_at)]
 #![feature(str_utf16)]
-#![feature(box_str)]
 #![feature(test)]
 #![feature(unboxed_closures)]
 #![feature(unicode)]
-#![feature(vec_deque_retain)]
 #![feature(vec_push_all)]
 
 #[macro_use] extern crate log;

src/librustc_front/lib.rs

@@ -36,7 +36,6 @@
 #![feature(staged_api)]
 #![feature(str_char)]
 #![feature(filling_drop)]
-#![cfg_attr(test, feature(test))]
 
 extern crate serialize;
 #[macro_use] extern crate log;

src/libstd/lib.rs

@@ -248,8 +248,8 @@
 #![feature(wrapping)]
 #![feature(zero_one)]
 #![cfg_attr(windows, feature(str_utf16))]
-#![cfg_attr(test, feature(float_from_str_radix, range_inclusive, float_extras, hash_default))]
-#![cfg_attr(test, feature(test, rustc_private, float_consts))]
+#![cfg_attr(test, feature(float_from_str_radix, range_inclusive, float_extras))]
+#![cfg_attr(test, feature(test, rustc_private))]
 #![cfg_attr(target_env = "msvc", feature(link_args))]
 
 // Don't link to std. We are std.