diff --git a/tests/ui/feature-gates/feature-gate-extern_prelude.rs b/tests/ui/feature-gates/feature-gate-extern_prelude.rs
deleted file mode 100644
index 237099e790107..0000000000000
--- a/tests/ui/feature-gates/feature-gate-extern_prelude.rs
+++ /dev/null
@@ -1 +0,0 @@
-can-only-test-this-in-run-make-fulldeps //~ ERROR expected one of `!` or `::`, found `-`
diff --git a/tests/ui/feature-gates/feature-gate-extern_prelude.stderr b/tests/ui/feature-gates/feature-gate-extern_prelude.stderr
deleted file mode 100644
index 3b0ffae869653..0000000000000
--- a/tests/ui/feature-gates/feature-gate-extern_prelude.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: expected one of `!` or `::`, found `-`
-  --> $DIR/feature-gate-extern_prelude.rs:1:4
-   |
-LL | can-only-test-this-in-run-make-fulldeps
-   |    ^ expected one of `!` or `::`
-
-error: aborting due to 1 previous error
-