CryptoWallet: Imported ETH private key; deleted wallet; still available in "Transfer Between my Accounts"

[heyJonBray]

Description

I was playing around with crypto wallet features to import 3rd party wallets from the private key. This worked great, all of my ERC20 token balances showed up fine. I removed the account from my Crypto Wallets, but when I open my Brave-created or MetaMask wallet and send funds, my third wallet is still shown.

Steps to Reproduce

1. brave://wallet > Import Account > Private Key
2. Enter private key for ETH wallet
3. Remove connected wallet.
4. Open any other wallet and select 'Send' > 'Transfer Between my Accounts'
5. The deleted wallet is still shown there, although without the name it was given, just "Address 3".

Actual result:

A wallet which contained my private key is still showing up as a contact even after removing.

Expected result:

I don't want to see that wallet anymore after removing.

Reproduces how often:

Easily reproduced. Tried with Exodus and MyEtherWallet.

Brave version (brave://version info)

Brave	1.5.113 Chromium: 80.0.3987.149 (Official Build) (64-bit)
Revision	5f4eb224680e5d7dca88504586e9fd951840cac6-refs/branch-heads/3987_137@{#16}
OS	Windows 10 OS Version 1909 (Build 18363.720)

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
  No
• Does the issue resolve itself when disabling Brave Rewards?
  No