Remove lang_items feature

Author: phil-opp

Diff for: src/main.rs

@@ -1,4 +1,3 @@
-#![feature(lang_items)]
 #![no_std]
 #![no_main]
 
@@ -378,12 +377,6 @@ pub fn panic(info: &PanicInfo) -> ! {
     loop {}
 }
 
-#[lang = "eh_personality"]
-#[no_mangle]
-pub extern "C" fn eh_personality() {
-    loop {}
-}
-
 #[no_mangle]
 pub extern "C" fn _Unwind_Resume() {
     loop {}