refactor CSCS and Meg content

_data/sidebars/CSCS_sidebar.yaml

@@ -1,15 +0,0 @@
-
-# Follow the pattern here for the URLs -- no slash at the beginning, and include the .html. The link here is rendered exactly as is in the Markdown references.
-
-entries:
-- product: PSI HPC@CSCS
-  folders:
-  - title: Overview
-    # URLs for top-level folders are optional. If omitted it is a bit easier to toggle the accordion.
-    folderitems:
-    - title: Overview
-      url: /CSCS/index.html
-  - title: Operations
-    folderitems:
-    - title: Transfer Data
-      url: /CSCS/transfer-data.html

_data/sidebars/meg_sidebar.yml

@@ -1,17 +0,0 @@
-# Follow the pattern here for the URLs -- no slash at the beginning, and include the .html. The link here is rendered exactly as is in the Markdown references.
-
-entries:
-  - product: MEG
-    version: 
-    folders:
-      - title: Quick Start Guide
-        folderitems:
-          - title: Introduction
-            url: /meg/introduction.html
-      - title: Support
-        folderitems:
-        - title: MeG Migration Guide
-          url: /meg/migrating.html
-        - title: Contact
-          url: /meg/contact.html
-