servo: Merge #4881 - Allow unused variables, imports, and mutable (from jdm:allowunused); r=Manishearth

Source-Repo: https://github.com/servo/servo
Source-Revision: 7048291dc0db4efecf9c13779feeb5e022210123

servo/components/script/lib.rs

@@ -5,8 +5,6 @@
 #![feature(unsafe_destructor, plugin, box_syntax, int_uint)]
 
 #![deny(unsafe_blocks)]
-#![deny(unused_imports)]
-#![deny(unused_variables)]
 #![allow(non_snake_case)]
 #![allow(missing_copy_implementations)]
 #![allow(unstable)]