Remove many unneeded feature annotations in the docs

When things get stabilized, they don't always have their docs updated to remove the gate.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/libcore/macros.rs b/src/libcore/macros.rs
index 64eb75ea530..b5555fa5119 100644
--- a/src/libcore/macros.rs
+++ b/src/libcore/macros.rs
@@ -173,12 +173,11 @@ macro_rules! try {
 /// # Examples
 ///
 /// ```
-/// # #![allow(unused_must_use)]
 /// use std::io::Write;
 ///
 /// let mut w = Vec::new();
-/// write!(&mut w, "test");
-/// write!(&mut w, "formatted {}", "arguments");
+/// write!(&mut w, "test").unwrap();
+/// write!(&mut w, "formatted {}", "arguments").unwrap();
 /// ```
 #[macro_export]
 macro_rules! write {