diff --git a/misc/ci/sources.list b/misc/ci/sources.list
deleted file mode 100644
index 4d8f94f35c4..00000000000
--- a/misc/ci/sources.list
+++ /dev/null
@@ -1,4 +0,0 @@
-deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
-deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
-deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
-deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse