Change to new way to Reset Wallet for brave-core 1.36.x upgrade

[bbondy]

Description:

Before 1.35.x brave-core, you could just call KeyringController::Reset to reset the wallet. This changes as of this PR:
https://github.com/brave/brave-core/pull/11669/files#diff-d5d80c8bf10054827601d890b9e85e6c9bfc4304b17089bd7d443c94c554f232R19

Resetting Wallet must change to this new method for upgrade to 1.36.x brave-core or else there will be Reset regressions.

cc @nuo-xu or @kylehickinson

[bbondy]

Update: BraveWalletService::Reset will need to be called only, and that can be done from mojo:
brave/brave-core#11754

[bbondy]

Moved this to 1.36.x since I'm going to leave the new changes in 1.36.x and revert the 1.35.x changes so there's no upgrade needed for it.

[nuo-xu]

For QAs,
Please do a sanity test on wallet resetting to make sure resetting is not broken.
Thanks

[Uni-verse]

Verification in completed using 1.36 (22.2.17.10)

PASSED on iPhone 12 Pro running iOS 15.1.1
PASSED on iPhone X running iOS 14.4.2
PASSED on iPad (7th Gen) running iPadOS 15.2.1

Scenarios:

• Able to reset brave wallet after upgrading app
• Able to reset created brave wallet
• Able to reset restored brave wallet
• Able to reset restored third party wallet (meta mask)
• User is taken to the Brave Wallet landing screen upon resetting
• User is able to reset wallet via the account tab settings > reset
• User is able to reset wallet via the 3 dot menu > settings > reset

[Uni-verse]

Retested and updated post with new version 1.36 (22.2.17.10) when finding relaunching app after resetting wallet still showed active wallet.

@nuo-xu

[Uni-verse]

Retested and updated post with new version 1.36 (22.2.17.10) when finding relaunching app after resetting wallet still showed active wallet.

@nuo-xu

Just to clarify, I re-tested this scenario and was not able to repro on the build version above so its a PASS. This concludes the verification.