chore: remove Granite/Toss config and entry files

src/_app.tsx

@@ -1,20 +0,0 @@
-import { AppsInToss } from '@apps-in-toss/framework';
-import { TDSMobileAITProvider } from '@toss/tds-mobile-ait';
-import { PropsWithChildren } from 'react';
-import { InitialProps } from '@granite-js/react-native';
-import { context } from '../require.context';
-import { initAnalytics } from './analytics';
-import { TutorialOverlay } from './components/tutorial/TutorialOverlay';
-
-initAnalytics(process.env.NODE_ENV !== 'production');
-
-function AppContainer({ children }: PropsWithChildren<InitialProps>) {
-  return (
-    <TDSMobileAITProvider brandPrimaryColor="#FF6B35">
-      {children}
-      <TutorialOverlay />
-    </TDSMobileAITProvider>
-  );
-}
-
-export default AppsInToss.registerApp(AppContainer, { context });