use platform specific files instead of codes

src/setup/index.ts

@@ -1,20 +1,13 @@
 import {I18nManager} from 'react-native';
 import Onyx from 'react-native-onyx';
-import getPlatform from '@libs/getPlatform';
 import intlPolyfill from '@libs/IntlPolyfill';
 import * as Metrics from '@libs/Metrics';
 import * as Device from '@userActions/Device';
 import exposeGlobalMemoryOnlyKeysMethods from '@userActions/MemoryOnlyKeys/exposeGlobalMemoryOnlyKeysMethods';
 import CONST from '@src/CONST';
 import ONYXKEYS from '@src/ONYXKEYS';
 import platformSetup from './platformSetup';
-
-function initializeLastVisitedPath(): string | undefined {
-    if (!(getPlatform() === CONST.PLATFORM.ANDROID || getPlatform() === CONST.PLATFORM.IOS)) {
-        return;
-    }
-    return '';
-}
+import initializeLastVisitedPath from './initializeLastVisitedPath';
 
 export default function () {
     /*

src/setup/initializeLastVisitedPath/index.native.ts

@@ -0,0 +1,3 @@
+export default function (): string {
+    return '';
+}

src/setup/initializeLastVisitedPath/index.ts

@@ -0,0 +1 @@
+export default function (): undefined {};