remove ttl unused settings and all translated key

_locales/en/messages.json

@@ -1160,14 +1160,6 @@
     "androidKey": "preferences__typing_indicators",
     "ignoreCase": true
   },
-  "messageTTL": {
-    "message": "Message TTL",
-    "description": "Title of the Message TTL setting"
-  },
-  "messageTTLSettingDescription": {
-    "message": "Time to live (how long the recipient will have to collect their messages)",
-    "description": "Description of the time to live setting"
-  },
   "zoomFactorSettingTitle": {
     "message": "Zoom Factor",
     "description": "Title of the Zoom Factor setting"

_locales/fr/messages.json

@@ -1517,14 +1517,6 @@
         "message": "See and share when messages are being typed (applies to all sessions).",
         "description": "Description of the typing indicators setting"
     },
-    "messageTTL": {
-        "message": "Message TTL",
-        "description": "Title of the Message TTL setting"
-    },
-    "messageTTLSettingDescription": {
-        "message": "Time to live (how long the recipient will have to collect their messages)",
-        "description": "Description of the time to live setting"
-    },
     "zoomFactorSettingTitle": {
         "message": "Zoom Factor",
         "description": "Title of the Zoom Factor setting"

_locales/ru/messages.json

@@ -1517,14 +1517,6 @@
         "message": "Получать и отсылать уведомления когда вы и ваш собедник набирает сообщение (для всех контактов).",
         "description": "Description of the typing indicators setting"
     },
-    "messageTTL": {
-        "message": "Message TTL",
-        "description": "Title of the Message TTL setting"
-    },
-    "messageTTLSettingDescription": {
-        "message": "Time to live (how long the recipient will have to collect their messages)",
-        "description": "Description of the time to live setting"
-    },
     "zoomFactorSettingTitle": {
         "message": "Масштабирование Приложения",
         "description": "Title of the Zoom Factor setting"

ts/components/session/settings/SessionSettings.tsx

@@ -10,7 +10,7 @@ import {
 import { BlockedNumberController, UserUtil } from '../../../util';
 import { MultiDeviceProtocol } from '../../../session/protocols';
 import { PubKey } from '../../../session/types';
-import { NumberUtils, ToastUtils } from '../../../session/utils';
+import { ToastUtils } from '../../../session/utils';
 
 export enum SessionSettingCategory {
   Appearance = 'appearance',
@@ -444,35 +444,6 @@ export class SettingsView extends React.Component<SettingsViewProps, State> {
         onClick: undefined,
         confirmationDialogParams: undefined,
       },
-      {
-        id: 'message-ttl',
-        title: window.i18n('messageTTL'),
-        description: window.i18n('messageTTLSettingDescription'),
-        // TODO: Revert
-        // TTL set to 2 days for mobile push notification compabability
-        // temporary fix .t 13/07/2020
-        //
-        // TODO: Hook up this TTL to message sending when re-enabling.
-        // This setting is not used in any libsession sending code
-        hidden: true,
-        type: SessionSettingType.Slider,
-        category: SessionSettingCategory.Privacy,
-        setFn: undefined,
-        comparisonValue: undefined,
-        onClick: undefined,
-        content: {
-          dotsEnabled: true,
-          step: 6,
-          min: 12,
-          max: 96,
-          defaultValue: NumberUtils.msAsUnit(
-            window.CONSTANTS.TTL_DEFAULT_REGULAR_MESSAGE,
-            'hour'
-          ),
-          info: (value: number) => `${value} Hours`,
-        },
-        confirmationDialogParams: undefined,
-      },
       {
         id: 'zoom-factor-setting',
         title: window.i18n('zoomFactorSettingTitle'),

ts/session/utils/Number.ts

@@ -1,33 +1,4 @@
-type TimeUnit =
-  | 'second'
-  | 'seconds'
-  | 'minute'
-  | 'minutes'
-  | 'hour'
-  | 'hours'
-  | 'day'
-  | 'days';
-
 export const MINUTES = 60 * 1000; // in ms
 // tslint:disable: binary-expression-operand-order
 export const HOURS = 60 * MINUTES; // in ms
 export const DAYS = 24 * HOURS; // in ms
-
-export const msAsUnit = (value: number, unit: TimeUnit) => {
-  // Converts milliseconds to your preferred unit
-  // Valid units: second(s), minute(s), hour(s), day(s)
-  const unitAsSingular = unit.replace(new RegExp('s?$'), '');
-
-  switch (unitAsSingular) {
-    case 'second':
-      return value / 1000;
-    case 'minute':
-      return value / 60 / 1000;
-    case 'hour':
-      return value / 60 / 60 / 1000;
-    case 'day':
-      return value / 24 / 60 / 60 / 1000;
-    default:
-      return value;
-  }
-};