Rollup merge of #23329 - jbcrail:rm-syntax-highlight, r=sanxiyn

 As suggested by @steveklabnik in #23254, I removed the redundant Rust syntax highlighting from the documentation.

7 files changed, 24 insertions, 24 deletions

diff --git a/src/libstd/old_io/buffered.rs b/src/libstd/old_io/buffered.rs
index 2f4e1e87099..82a48a72499 100644
--- a/src/libstd/old_io/buffered.rs
+++ b/src/libstd/old_io/buffered.rs
@@ -34,7 +34,7 @@ use vec::Vec;
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::old_io::{BufferedReader, File};
 ///
 /// let file = File::open(&Path::new("message.txt"));
@@ -137,7 +137,7 @@ impl<R: Reader> Reader for BufferedReader<R> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::old_io::{BufferedWriter, File};
 ///
 /// let file = File::create(&Path::new("message.txt")).unwrap();
@@ -323,7 +323,7 @@ impl<W: Reader> Reader for InternalBufferedWriter<W> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::{BufferedStream, File};
 ///
diff --git a/src/libstd/old_io/fs.rs b/src/libstd/old_io/fs.rs
index a6ed76688ca..ff3af380b7d 100644
--- a/src/libstd/old_io/fs.rs
+++ b/src/libstd/old_io/fs.rs
@@ -176,7 +176,7 @@ impl File {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::File;
     ///
     /// let contents = File::open(&Path::new("foo.txt")).read_to_end();
@@ -195,7 +195,7 @@ impl File {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// # #![allow(unused_must_use)]
     /// use std::old_io::File;
     ///
@@ -286,7 +286,7 @@ impl File {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::fs;
 ///
@@ -317,7 +317,7 @@ pub fn unlink(path: &Path) -> IoResult<()> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::old_io::fs;
 ///
 /// let p = Path::new("/some/file/path.txt");
@@ -359,7 +359,7 @@ pub fn lstat(path: &Path) -> IoResult<FileStat> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::fs;
 ///
@@ -387,7 +387,7 @@ pub fn rename(from: &Path, to: &Path) -> IoResult<()> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::fs;
 ///
@@ -437,7 +437,7 @@ pub fn copy(from: &Path, to: &Path) -> IoResult<()> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io;
 /// use std::old_io::fs;
@@ -508,7 +508,7 @@ pub fn readlink(path: &Path) -> IoResult<Path> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io;
 /// use std::old_io::fs;
@@ -532,7 +532,7 @@ pub fn mkdir(path: &Path, mode: FilePermission) -> IoResult<()> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::fs;
 ///
@@ -556,7 +556,7 @@ pub fn rmdir(path: &Path) -> IoResult<()> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// use std::old_io::fs::PathExtensions;
 /// use std::old_io::fs;
 /// use std::old_io;
diff --git a/src/libstd/old_io/mem.rs b/src/libstd/old_io/mem.rs
index 43182e4fcd6..72774334c13 100644
--- a/src/libstd/old_io/mem.rs
+++ b/src/libstd/old_io/mem.rs
@@ -56,7 +56,7 @@ impl Writer for Vec<u8> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::MemWriter;
 ///
@@ -116,7 +116,7 @@ impl Writer for MemWriter {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::MemReader;
 ///
@@ -246,7 +246,7 @@ impl<'a> Buffer for &'a [u8] {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::BufWriter;
 ///
@@ -318,7 +318,7 @@ impl<'a> Seek for BufWriter<'a> {
 ///
 /// # Examples
 ///
-/// ```rust
+/// ```
 /// # #![allow(unused_must_use)]
 /// use std::old_io::BufReader;
 ///
diff --git a/src/libstd/old_io/mod.rs b/src/libstd/old_io/mod.rs
index e1341e0e5cf..15a80e34451 100644
--- a/src/libstd/old_io/mod.rs
+++ b/src/libstd/old_io/mod.rs
@@ -1410,7 +1410,7 @@ pub trait Buffer: Reader {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::BufReader;
     ///
     /// let mut reader = BufReader::new(b"hello\nworld");
diff --git a/src/libstd/old_io/net/pipe.rs b/src/libstd/old_io/net/pipe.rs
index 59352532902..ad0e7a7284d 100644
--- a/src/libstd/old_io/net/pipe.rs
+++ b/src/libstd/old_io/net/pipe.rs
@@ -52,7 +52,7 @@ impl UnixStream {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// # #![allow(unused_must_use)]
     /// use std::old_io::net::pipe::UnixStream;
     ///
diff --git a/src/libstd/old_io/stdio.rs b/src/libstd/old_io/stdio.rs
index 92fad231671..b699b93f2b8 100644
--- a/src/libstd/old_io/stdio.rs
+++ b/src/libstd/old_io/stdio.rs
@@ -142,7 +142,7 @@ impl StdinReader {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io;
     ///
     /// let mut stdin = old_io::stdin();
diff --git a/src/libstd/old_io/timer.rs b/src/libstd/old_io/timer.rs
index de7883c715a..65c62a99335 100644
--- a/src/libstd/old_io/timer.rs
+++ b/src/libstd/old_io/timer.rs
@@ -115,7 +115,7 @@ impl Timer {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::Timer;
     /// use std::time::Duration;
     ///
@@ -128,7 +128,7 @@ impl Timer {
     /// ten_milliseconds.recv().unwrap();
     /// ```
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::Timer;
     /// use std::time::Duration;
     ///
@@ -167,7 +167,7 @@ impl Timer {
     ///
     /// # Examples
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::Timer;
     /// use std::time::Duration;
     ///
@@ -186,7 +186,7 @@ impl Timer {
     /// ten_milliseconds.recv().unwrap();
     /// ```
     ///
-    /// ```rust
+    /// ```
     /// use std::old_io::Timer;
     /// use std::time::Duration;
     ///