Revert collection-index.yml change: remove caspersg entry

Co-authored-by: abdurriq <137001048+abdurriq@users.noreply.github.com>

Author: Copilot

_data/collection-index.yml

@@ -1291,11 +1291,6 @@
   contact: https://github.com/pairspaces/devcontainers/issues
   repository: https://github.com/pairspaces/devcontainers
   ociReference: ghcr.io/pairspaces/devcontainers/pairspaces
-- name: Dev Container Features by caspersg
-  maintainer: caspersg
-  contact: https://github.com/caspersg/devcontainer_features/issues
-  repository: https://github.com/caspersg/devcontainer_features
-  ociReference: ghcr.io/caspersg/devcontainer_features
 - name: Dev Container Features by Carlos Eduardo Monti
   maintainer: Carlos Eduardo Monti
   contact: https://github.com/slaytanic/devcontainer/issues