chore: simplify language config

Author: vesameskanen

app/configurations/config.default.js

@@ -213,19 +213,8 @@ export default {
   // if you enable car suggestions but the linear distance between all points is less than this, then a car route will
   // not be computed
   suggestCarMinDistance: 2000,
-  availableLanguages: [
-    'fi',
-    'sv',
-    'en',
-    'fr',
-    'nb',
-    'de',
-    'da',
-    'es',
-    'ro',
-    'pl',
-  ],
-  defaultLanguage: 'en',
+  availableLanguages: ['fi', 'sv', 'en'],
+  defaultLanguage: 'fi',
   timeZone: 'Europe/Helsinki',
   allowLogin: false,
   allowFavouritesFromLocalstorage: true,

app/configurations/config.hsl.js

@@ -91,11 +91,9 @@ export default {
 
   title: 'Reittiopas',
 
-  availableLanguages: ['fi', 'sv', 'en'],
   availableTickets: {
     Sipoo: true,
   },
-  defaultLanguage: 'fi',
   passLanguageToRootLink: true,
 
   favicon: './app/configurations/images/hsl/hsl-favicon.png',

app/configurations/config.kela.js

@@ -93,9 +93,6 @@ export default {
     countrySelection: [],
   },
 
-  availableLanguages: ['fi', 'sv', 'en'],
-  defaultLanguage: 'fi',
-
   socialMedia: {
     title: APP_TITLE,
     description: APP_DESCRIPTION,

app/configurations/config.matka.js

@@ -33,9 +33,6 @@ export default {
     countrySelection: ['estonia'],
   },
 
-  availableLanguages: ['fi', 'sv', 'en'],
-  defaultLanguage: 'fi',
-
   socialMedia: {
     title: APP_TITLE,
     description: APP_DESCRIPTION,

app/configurations/config.waltti.js

@@ -56,9 +56,6 @@ export default {
     description: APP_DESCRIPTION,
   },
 
-  availableLanguages: ['fi', 'sv', 'en'],
-  defaultLanguage: 'fi',
-
   vehicles: true,
   showVehiclesOnStopPage: true,
   showVehiclesOnItineraryPage: true,