diff --git a/tests/ui/auxiliary/default-ty-param-cross-crate-crate.rs b/tests/ui/auxiliary/default-ty-param-cross-crate-crate.rs
deleted file mode 100644
index d722b78768a4..000000000000
--- a/tests/ui/auxiliary/default-ty-param-cross-crate-crate.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-#![crate_type = "lib"]
-#![crate_name = "default_param_test"]
-#![feature(default_type_parameter_fallback)]
-
-use std::marker::PhantomData;
-
-pub struct Foo<A, B>(PhantomData<(A, B)>);
-
-pub fn bleh<A=i32, X=char>() -> Foo<A, X> { Foo(PhantomData) }
diff --git a/tests/ui/auxiliary/edition-kw-macro-2015.rs b/tests/ui/auxiliary/edition-kw-macro-2015.rs
deleted file mode 100644
index 7f479fa93708..000000000000
--- a/tests/ui/auxiliary/edition-kw-macro-2015.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-//@ edition:2015
-
-#[macro_export]
-macro_rules! produces_async {
-    () => (pub fn async() {})
-}
-
-#[macro_export]
-macro_rules! produces_async_raw {
-    () => (pub fn r#async() {})
-}
-
-#[macro_export]
-macro_rules! consumes_async {
-    (async) => (1)
-}
-
-#[macro_export]
-macro_rules! consumes_async_raw {
-    (r#async) => (1)
-}
-
-#[macro_export]
-macro_rules! passes_ident {
-    ($i: ident) => ($i)
-}
diff --git a/tests/ui/auxiliary/edition-kw-macro-2018.rs b/tests/ui/auxiliary/edition-kw-macro-2018.rs
deleted file mode 100644
index ba8ecc4d83b3..000000000000
--- a/tests/ui/auxiliary/edition-kw-macro-2018.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-//@ edition:2018
-
-#[macro_export]
-macro_rules! produces_async {
-    () => (pub fn async() {})
-}
-
-#[macro_export]
-macro_rules! produces_async_raw {
-    () => (pub fn r#async() {})
-}
-
-#[macro_export]
-macro_rules! consumes_async {
-    (async) => (1)
-}
-
-#[macro_export]
-macro_rules! consumes_async_raw {
-    (r#async) => (1)
-}
-
-#[macro_export]
-macro_rules! passes_ident {
-    ($i: ident) => ($i)
-}