0.5.9: Remove use of stable feature int_roundings

src/bin/mount.rs

@@ -1,5 +1,3 @@
-#![feature(int_roundings)]
-
 extern crate libc;
 
 #[cfg(target_os = "redox")]

src/lib.rs

@@ -4,8 +4,6 @@
 // Used often in generating redox_syscall errors
 #![allow(clippy::or_fun_call)]
 
-#![feature(int_roundings)]
-
 extern crate alloc;
 
 use core::sync::atomic::AtomicUsize;