lockfiles: Drop all pkg overrides to reset the branch

This ensures that the subsequent changes in the PR are applied to a
clean base

manifest-lock.overrides.yaml

@@ -8,22 +8,4 @@
 # in the `metadata.reason` key, though it's acceptable to omit a `reason`
 # for FCOS-specific packages (ignition, afterburn, etc.).
 
-packages:
-  libbsd:
-    evr: 0.12.2-3.fc40
-    metadata:
-      bodhi: https://bodhi.fedoraproject.org/updates/FEDORA-2024-86fbbe4bc7
-      reason: https://github.com/coreos/fedora-coreos-tracker/issues/1674#issuecomment-2010200582
-      type: fast-track
-  rpm-ostree:
-    evr: 2024.5-2.fc40
-    metadata:
-      bodhi: https://bodhi.fedoraproject.org/updates/FEDORA-2024-b59ee8264e
-      reason: https://github.com/coreos/fedora-coreos-tracker/issues/1674#issuecomment-2010200582
-      type: fast-track
-  rpm-ostree-libs:
-    evr: 2024.5-2.fc40
-    metadata:
-      bodhi: https://bodhi.fedoraproject.org/updates/FEDORA-2024-b59ee8264e
-      reason: https://github.com/coreos/fedora-coreos-tracker/issues/1674#issuecomment-2010200582
-      type: fast-track
+packages: {}