chore: remove smart account upgrade splash page and related preferences

app/components/Nav/App/App.tsx

@@ -147,7 +147,6 @@
 import useInterval from '../../hooks/useInterval';
 import { Duration } from '@metamask/utils';
 import { selectSeedlessOnboardingLoginFlow } from '../../../selectors/seedlessOnboardingController';
-import { SmartAccountUpdateModal } from '../../Views/confirmations/components/smart-account-update-modal';
 import { PayWithModal } from '../../Views/confirmations/components/modals/pay-with-modal/pay-with-modal';
 import { State2AccountConnectWrapper } from '../../Views/MultichainAccounts/MultichainAccountConnect/State2AccountConnectWrapper';
 import { SmartAccountModal } from '../../Views/MultichainAccounts/AccountDetails/components/SmartAccountModal/SmartAccountModal';
@@ -889,21 +888,6 @@
   </Stack.Navigator>
 );
 
-const ModalSmartAccountOptIn = () => (
-  <Stack.Navigator
-    screenOptions={{
-      headerShown: false,
-      cardStyle: { backgroundColor: importedColors.transparent },
-    }}
-    mode={'modal'}
-  >
-    <Stack.Screen
-      name={Routes.SMART_ACCOUNT_OPT_IN}
-      component={SmartAccountUpdateModal}
-    />
-  </Stack.Navigator>
-);
-
 const AppFlow = () => (
   <Stack.Navigator
     initialRouteName={Routes.FOX_LOADER}
@@ -1088,10 +1072,6 @@
       name={Routes.CONFIRMATION_SWITCH_ACCOUNT_TYPE}
       component={ModalSwitchAccountType}
     />
-    <Stack.Screen
-      name={Routes.SMART_ACCOUNT_OPT_IN}
-      component={ModalSmartAccountOptIn}
-    />
     <Stack.Screen
       name={Routes.CONFIRMATION_PAY_WITH_MODAL}
       component={PayWithModal}
@@ -1174,7 +1154,7 @@
       Logger.error(error, 'Error starting app');
     });
     // existingUser is not present in the dependency array because it is not needed to re-run the effect when it changes and it will cause a bug.
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   return (

app/components/Views/confirmations/components/confirm/confirm-component.test.tsx

@@ -1,17 +1,14 @@
-import { act } from '@testing-library/react-native';
 import React from 'react';
 import { cloneDeep } from 'lodash';
 import { ScrollView } from 'react-native';
 import { SafeAreaProvider } from 'react-native-safe-area-context';
 import {
   generateContractInteractionState,
-  getAppStateForConfirmation,
   personalSignatureConfirmationState,
   stakingClaimConfirmationState,
   stakingDepositConfirmationState,
   stakingWithdrawalConfirmationState,
   typedSignV1ConfirmationState,
-  upgradeAccountConfirmation,
 } from '../../../../../util/test/confirm-data-helpers';
 import renderWithProvider from '../../../../../util/test/renderWithProvider';
 import { Confirm, ConfirmationLoader } from './confirm-component';
@@ -301,20 +298,6 @@ describe('Confirm', () => {
     expect(getByText('Network fee')).toBeDefined();
   });
 
-  it('renders splash page if present', async () => {
-    const { getByText } = renderWithProvider(<Confirm />, {
-      state: getAppStateForConfirmation(upgradeAccountConfirmation, {
-        PreferencesController: { smartAccountOptIn: false },
-      }),
-    });
-
-    await act(async () => {
-      await Promise.resolve();
-    });
-
-    expect(getByText('Use smart account?')).toBeTruthy();
-  });
-
   it('displays loading spinner when no approval request exists', () => {
     const stateWithoutRequest = cloneDeep(typedSignV1ConfirmationState);
     stateWithoutRequest.engine.backgroundState.ApprovalController = {

app/components/Views/confirmations/components/confirm/confirm-component.tsx

@@ -26,7 +26,6 @@ import AlertBanner from '../alert-banner';
 import Info from '../info-root';
 import Title from '../title';
 import { Footer, FooterSkeleton } from '../footer';
-import { Splash } from '../splash';
 import styleSheet from './confirm-component.styles';
 import { TransactionType } from '@metamask/transaction-controller';
 import { useParams } from '../../../../../util/navigation/navUtils';
@@ -91,7 +90,6 @@ const ConfirmWrapped = ({
                 </TouchableWithoutFeedback>
               </ScrollView>
               <Footer />
-              <Splash />
             </LedgerContextProvider>
           </QRHardwareContextProvider>
         </ConfirmationAlerts>