diff --git a/tests/wpt/metadata-css/__dir__.ini b/tests/wpt/metadata-css/__dir__.ini
deleted file mode 100644
index ac9f35f358b..00000000000
--- a/tests/wpt/metadata-css/__dir__.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-prefs: ["layout.flex.enabled:true",
-        "layout.flex-direction.enabled:true",
-        "layout.columns.enabled:true",
-        "layout.column-width.enabled:true",
-        "layout.column-count.enabled:true",
-        "layout.column-gap.enabled:true",
-        "layout.writing-mode.enabled:true",
-        "layout.text-orientation.enabled:true",
-        "layout.viewport.enabled:true"]