[Bug]: Import Wallet with Batch Accounts disabled loads all the Accounts that have ETH

### Describe the bug

**Problem**: if I Import a Wallet, while having the Batch Accounts feature disabled from the Onboarding flow, I expect to see only 1 Account, as there is no way that it knows how many Accounts should it load, if no batch request is sent?

https://user-images.githubusercontent.com/54408225/213661594-3564f1db-780d-4a30-bd6d-f9cbb3493ea8.mp4

### Steps to reproduce

1. Load MM for the first time
2. Import a Wallet (which you know it has more than 1 account with ETH)
3. Click Advanced Settings
4. Disable Batch Account requests
5. Proceed
6. Click Accounts dropdown -- see that there are loaded up to all accounts which have balance

### Error messages or log output

_No response_

### Version

10.24.0

### Build type

None

### Browser

Chrome

### Operating system

Linux

### Hardware wallet

_No response_

### Additional context

_No response_

Start with the wallet import and onboarding flow, following the Advanced Settings path where Batch Account requests are disabled. Reproduce the issue with an imported wallet containing multiple ETH-funded accounts; done means the Accounts dropdown shows only one account when batching is disabled.

Written by the indexing model from the issue text.