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/calverts.md

@@ -1,73 +1,7 @@
 ---
-title: Calverts
 name: Calverts
-members: 13
 website: http://www.calverts.coop/
 logo: calverts-white.png
-email: info@calverts.coop
-twitter: calverts_print_london
-github: calverts
-telephone: "+44 (0) 20 7739 1474"
-address: 9-10 The Oval,London,UK,E2 9DT
-latitude: 51.53326029999999
-longitude: -0.05884240000000318
-clients:
-- ace-hotel
-- banksy
-- bates-wells-braithwaite-llp
-- british-museum
-- child-poverty-action-group
-- christopher-kane
-- east-end-trades-guild
-- feilden-clegg-bradley-studios
-- global-witness
-- international-cooperative-alliance
-- king-s-college-london
-- lush
-- muji
-- nottingham-contemporary
-- refugee-rights-data-project
-- remy-cointreau
-- royal-academy-of-arts
-- royal-college-of-art
-- serpentine-galleries
-- supporters-direct
-- swarovski
-- university-college-london
-- wrangler
-services:
-- artwork
-- binding-and-special-effects
-- branding-and-identity
-- consultancy
-- copywriting-and-translation
-- distribution
-- exhibition-and-display
-- graphic-design
-- ideation
-- logo-design
-- mailing
-- paper-and-substrate-library
-- photography
-- print-finishing
-- print-seminars-and-consulting
-- printing
-- reprographics
-- web-design
-technologies:
-- epson
-- heidelberg
-- adobe-illustrator
-- indesign
-- iso14001-environmental-management
-- kodak
-- konika
-- muller-martini
-- photoshop
-- preps
-- risograph
-- tharstern-print-management
-- wordpress
 ---
 
 Calverts is a creative design, print and production coop in Bethnal Green, east London. We specialise in branding, content, web, publications and sustainable print.