contribution notification displays again after toggle payments off/on

[LaurenWags]

Description

If you toggle payments off/on after a contribution is made, you get the contribution notification again.

Steps to Reproduce

1. Launch 0.21.12 using LEDGER_ENVIRONMENT=staging
2. visit about:preferences#payments and enable payments
3. sites/YT videos
4. close brave and fund the staging wallet.
5. change reconcileStamp under ledger-state.json so Next Contribution is Overdue
6. launch 0.21.12 using LEDGER_NO_DELAY=true LEDGER_NO_FUZZING=true LEDGER_VERBOSE=true LEDGER_ENVIRONMENT=staging
7. wait till the contribution is made and you get a notification letting you know that X amount of BAT has been processed
8. select OK on the banner notification
9. Toggle Payments off/on

Actual result:
You get the contribution notification again.

Expected result:
No contribution notification.

Reproduces how often:
Easily

Brave Version

about:brave info:
0.21.12

Reproducible on current live release:
Yes

Additional Information

Unsure if this should have been resolved by #12817 - that scenario has you turning notifications off, but here you are leaving them on.
cc @NejcZdovc

[srirambv]

Verified on Windows x64

• 0.22.6 e6ff4ea
• libchromiumcontent: 65.0.3325.162
• muon: 5.1.0

Verified on macOS 10.12.6 x64 using the following build:

• 0.22.6 e6ff4ea
• libchromiumcontent: 65.0.3325.162
• muon: 5.1.0

Went through verification using Ubuntu 17.10.1 x64 with the following build:

• 0.22.7 8bb7e77
• libchromiumcontent: 65.0.3325.181
• muon: 5.1.1