Strip out unnecessary co-op YAML front matter

In the new designs we are no longer showing services, clients,
technologies, member counts, maps, addresses, email addresses or
social links for our member co-ops. So we can remove this metadata
altogether.

_coops/digital-society.md

@@ -1,39 +1,7 @@
 ---
-title: Digital Society
 name: Digital Society
-members: 2
 website: https://digitalsociety.coop/
 logo: digital-society.png
-email: hello@digitalsociety.coop
-github: digital-society-coop
-address: Flat 2, 10 Tinto place, Edinburgh, EH6 5FL
-latitude: 55.9702879
-longitude: 3.1857872
-clients:
-- singular-photonics
-- turbine-education
-- youthlink-scotland
-- vouchsafe
-services:
-- big-data
-- business-systems
-- consultancy
-- data-visualisation
-- database-solutions
-- development
-- devops
-- rapid-application-development
-technologies:
-- docker
-- express-js
-- flutter
-- htmlcss
-- javascript
-- postgresql
-- python
-- reactjs
-- rust
-- terraform
 ---
 
 We are an agile not-for-profit co-operative of technical experts.