Remove allow(deref_nullptr)

Signed-off-by: Francisco Javier Honduvilla Coto <javierhonduco@gmail.com>

Author: javierhonduco

src/lib.rs

@@ -1,7 +1,6 @@
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
-#![allow(deref_nullptr)] // TODO: remove this
 include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
 
 pub mod arch;