remove spurious changelog entry

debian/changelog

@@ -1,14 +1,9 @@
-livecd-rootfs (24.04.21) noble; urgency=medium
-
-  * Do not exit live image build if PASSES_TO_LAYERS is true and layer
-    is already registered.
-
- -- Philip Roche <phil.roche@canonical.com>  Wed, 24 Jan 2024 17:59:06 +0000
-
-livecd-rootfs (24.04.20) noble; urgency=medium
+livecd-rootfs (24.04.20) UNRELEASED; urgency=medium
 
   * fix: Fix for calling unminimize if lxd-installer package
     not installed. (LP: #2049723)
+  * Do not exit live image build if PASSES_TO_LAYERS is true and layer
+    is already registered.
 
  -- Philip Roche <phil.roche@canonical.com>  Mon, 22 Jan 2024 13:26:43 +0000