Update country list

Author: rafecolton

docs/Hidden/UK-and-EU-Expensify-Card.md

@@ -37,21 +37,14 @@ However, only companies registered in the following 20 UK and EU countries can e
 
 - Belgium
 - Denmark
-- Estonia
 - Finland
 - Gibraltar
-- Greece
 - Ireland
 - Latvia
-- Liechtenstein
 - Lithuania
 - Luxembourg
-- Malta
 - Netherlands
 - Poland
-- Romania
-- Slovakia
-- Slovenia
 - Spain
 - Sweden
 - United Kingdom