Remove dead code

src/lib.rs

@@ -16,7 +16,6 @@
 #![feature(range_contains)]
 #![feature(inclusive_range_syntax)]
 #![feature(drop_types_in_const)]
-#![feature(unicode)]
 #![feature(step_trait)]
 #![feature(plugin)]
 #![cfg_attr(feature = "clippy", plugin(clippy))]

src/util.rs

@@ -29,18 +29,3 @@ pub mod thread {
 
     pub use ::std::thread::*;
 }
-
-pub fn encode_char(c: char) -> Vec<u8> {
-    let mut buf = Vec::with_capacity(4);
-    unsafe {
-        buf.set_len(4);
-        let len = {
-            let s = c.encode_utf8(&mut buf[..]);
-            s.len()
-        };
-        buf.set_len(len);
-    }
-
-    buf
-}
-