allow hiding of BR icon when user has never enabled it

[rebron]

Description

A user should be able to hide Brave Rewards icon when they've never joined/enabled Brave Rewards.

Steps to Reproduce

1. New profile.
2. Don't join, don't enable Brave Rewards.
3. Go to Settings and select Hide Brave Rewards button.
4. Notice BR button is still visible.

Actual result:

Expected result:

Brave Rewards button is hidden.

[rebron]

Follow up to: #2975

[rebron]

@mkarolin mentioned this might me macOS only, need to verify on WIn/Linux.

[kjozwiak]

I can't seem to reproduce this on the following platforms:

• Win 10 x64 VM (clean profile/BR not enabled) - Couldn't reproduce
• macOS 10.14.3 x64 (clean profile/BR not enabled) - Couldn't reproduce
• Mint 19.1 x64 VM (clean profile/BR not enabled) - Couldn't reproduce

Used the following build for the above checks:

Brave	0.61.45 Chromium: 73.0.3683.39 (Official Build) beta(64-bit)
Revision	cc53b0e12fcaf42e4bab8d6c23bd4fb7aae99f6c-refs/branch-heads/3683@{#413}

Example of the switch being toggled on a profile that never had BR enabled:

@rebron @mkarolin which version did the happen on? Possibly regressed somewhere in 0.62.x or 0.63.x? Seems to be working fine under 0.61.x. Is there better STR? Possibly an edge case?

[rebron]

@anthonypkeane any more details on steps to reproduce?

I'm going to go ahead and close, marking invalid. Can't reproduce this either on 61.43 clean macOS build 10.14.2