Clean up aux crate

Author: tiif

tests/ui/internal/auxiliary/unstable_feature.rs

@@ -1,7 +1,6 @@
 #![allow(internal_features)]
 #![feature(staged_api)]
 #![feature(impl_stability)]
-#![allow(dead_code)]
 #![stable(feature = "a", since = "1.1.1" )]
 
 #[stable(feature = "a", since = "1.1.1" )]
@@ -25,6 +24,3 @@ impl Foo for Bar {
 impl Foo for Moo {
     fn foo() {}
 }
-
-fn main() {
-}

tests/ui/internal/auxiliary/unstable_impl_codegen_aux1.rs

@@ -18,6 +18,3 @@ impl<T> Trait for T {
         println!("hi");
     }
 }
-
-fn main() {
-}

tests/ui/internal/auxiliary/unstable_impl_codegen_aux2.rs

@@ -11,6 +11,3 @@ use aux::Trait;
 pub fn foo<T>(a:T) {
     a.method();
 }
-
-fn main() {
-}