Self tipping should not take Brave 5% fee

[mandar-brave]

For user wallets, self tipping is not permitted!
However, while self tipping fails, Brave ledger collects a 5% fee. This fee should not be deducted.

@NejcZdovc

[LaurenWags]

Verified passed with

Brave	0.69.116 Chromium: 76.0.3809.100 (Official Build) beta (64-bit)
Revision	ed9d447d30203dc5069e540f05079e493fc1c132-refs/branch-heads/3809@{#990}
OS	Mac OS X

• Connected a verified, KYC'd staging publisher account to staging Rewards in browser. Attempted to self-tip my own site and was unsuccessful. Expected error received on panel and my wallet balance was unchanged. Additionally, the 5% staging card balance was not changed.
  

• I then proceeded to verify the test plan from Fixes 5% fee when contribution fails brave-core#3202 where I tipped a different, verified site (KYC'd). Tip was deducted from my balance accordingly. Additionally, the 5% did go to the expected 5% staging card in Uphold. Also I was able to view the transactions in Uphold.
  
  

Transaction on KYC'd staging acct:

Transaction on acct with 5% staging card: (note, issue of name displaying will be resolved by #5808)

Verification passed on

Brave	0.70.93 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Windows 10 OS Version 1803 (Build 17134.523)

• Connected a verified, KYC'd staging publisher account to staging Rewards in browser. Attempted to self-tip my own site (https://www.twitch.tv/gsarvadnya) and was unsuccessful. Expected error received on panel and my wallet balance was unchanged. Additionally, the 5% staging card balance was not changed.

• then proceeded to verify the test plan from Fixes 5% fee when contribution fails brave-core#3202 where I tipped a different, verified site (KYC'd). Tip was deducted from my balance accordingly. Additionally, the 5% did go to the expected 5% staging card in Uphold. Also I was able to view the transactions in Uphold.

Transaction on KYC'd staging acct:

• Verified tipping 5BAT to a verified KYC'd twitter pub and verified that the tip was deducted from my balance accordingly. Additionally, 25% did go to the expected 5% staging card in Uphold. Also I was able to view the transactions in Uphold.

Transaction on KYC'd staging acct:

Verification passed on

Brave	0.69.128 Chromium: 77.0.3865.75 (Official Build) (64-bit)
Revision	201e747d032611c5f2785cae06e894cf85be7f8a-refs/branch-heads/3865@{#776}
OS	Ubuntu 18.04 LTS

• Connected a verified, KYC'd staging publisher account to staging Rewards in browser. Attempted to self-tip my own site and was unsuccessful. Expected error received on panel and my wallet balance was unchanged. Additionally, the 5% staging card balance was not changed.
  

Transaction on KYC'd staging acct: