remove unused indexes

config/database.yml

@@ -5,8 +5,8 @@ default: &default
 
 redux_prod: &redux_prod
   adapter: postgresql
-  host: db
-  port: 5432
+  host: <%= ENV.fetch("RAILS_DB_HOST") { "db" } %>
+  port: <%= ENV.fetch("RAILS_DB_PORT") { 5432 } %>
   database: redux_prod
   username: scraper_redux
   password: pdkFLqRmQwPUPaDDC4pX