This commit removes the following pages:
- ScyllaDB Open Source Features
- ScyllaDB Enterprise Features
They were outdated, incomplete, and misleading.
They were also redundant, as the per-release
updates are added as Release Notes.
With this update, the features listed on the removed
pages are added under the common page: ScyllaDB Features.
Note: No redirections are added, because no file paths
or URLs are changed with this commit.
Fixes https://github.com/scylladb/scylladb/issues/13485
Refs https://github.com/scylladb/scylladb/issues/16496
