Revert "import & export configuration"

src/www/js/i18n.js

@@ -30,10 +30,6 @@ const messages = { // eslint-disable-line no-unused-vars
     donate: 'Donate',
     toggleCharts: 'Show/hide Charts',
     theme: { dark: 'Dark theme', light: 'Light theme', auto: 'Auto theme' },
-    restore: 'Restore',
-    backup: 'Backup',
-    titleRestoreConfig: 'Restore your configuration',
-    titleBackupConfig: 'Backup your configuration',
   },
   ua: {
     name: 'Ім`я',
@@ -197,10 +193,6 @@ const messages = { // eslint-disable-line no-unused-vars
     downloadConfig: 'Télécharger la configuration',
     madeBy: 'Développé par',
     donate: 'Soutenir',
-    restore: 'Restaurer',
-    backup: 'Sauvegarder',
-    titleRestoreConfig: 'Restaurer votre configuration',
-    titleBackupConfig: 'Sauvegarder votre configuration',
   },
   de: { // github.com/florian-asche
     name: 'Name',
@@ -229,10 +221,6 @@ const messages = { // eslint-disable-line no-unused-vars
     downloadConfig: 'Konfiguration herunterladen',
     madeBy: 'Erstellt von',
     donate: 'Spenden',
-    restore: 'Wiederherstellen',
-    backup: 'Sichern',
-    titleRestoreConfig: 'Stelle deine Konfiguration wieder her',
-    titleBackupConfig: 'Sichere deine Konfiguraion',
   },
   ca: { // github.com/guillembonet
     name: 'Nom',
@@ -289,10 +277,6 @@ const messages = { // eslint-disable-line no-unused-vars
     donate: 'Donar',
     toggleCharts: 'Mostrar/Ocultar gráficos',
     theme: { dark: 'Modo oscuro', light: 'Modo claro', auto: 'Modo automático' },
-    restore: 'Restaurar',
-    backup: 'Realizar copia de seguridad',
-    titleRestoreConfig: 'Restaurar su configuración',
-    titleBackupConfig: 'Realizar copia de seguridad de su configuración',
   },
   ko: {
     name: '이름',
@@ -509,10 +493,6 @@ const messages = { // eslint-disable-line no-unused-vars
     downloadConfig: 'Scarica configurazione',
     madeBy: 'Realizzato da',
     donate: 'Donazione',
-    restore: 'Ripristina',
-    backup: 'Backup',
-    titleRestoreConfig: 'Ripristina la tua configurazione',
-    titleBackupConfig: 'Esegui il backup della tua configurazione',
   },
   th: {
     name: 'ชื่อ',