No way to sign out of Leo Premium

[urbenlegend]

Description

It seems like there's no way to sign out of Leo Premium. Both signing out of the Manage Subscription page and "Clear Leo data" do not sign out. The header in the Leo sidebar still shows Premium.

Steps to Reproduce

1. Log into Leo Premium
2. Attempt to sign out via Manage Subscription page
3. Clear leo data

Actual result:

Leo still says its using Premium

Expected result:

Leo should use free tier

Reproduces how often:

Every time

Desktop Brave version:

1.65.123 Chromium: 124.0.6367.91 (Official Build) (64-bit)

Android Device details:

• Install type (ARM, x86): ARM
• Device type (Phone, Tablet, Phablet): Pixel 5
• Android version: 14
  1.65.122 Chromium: 124.0.6367.82 (Official Build) (64-bit)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Not tested
• Can you reproduce this issue with the nightly channel? Not tested

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? N/A

Miscellaneous Information: