diff --git a/mk/cfg/aarch64-unknown-freebsd.mk b/mk/cfg/aarch64-unknown-freebsd.mk
deleted file mode 100644
index 34aee77ae2107..0000000000000
--- a/mk/cfg/aarch64-unknown-freebsd.mk
+++ /dev/null
@@ -1 +0,0 @@
-# rustbuild-only target
diff --git a/mk/cfg/i686-unknown-netbsd.mk b/mk/cfg/i686-unknown-netbsd.mk
deleted file mode 100644
index 34aee77ae2107..0000000000000
--- a/mk/cfg/i686-unknown-netbsd.mk
+++ /dev/null
@@ -1 +0,0 @@
-# rustbuild-only target