docs: Further Remove "Whitelabel" References

[crweiner]

Please see pull request #687 and Issue #686

Checklist

• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the [Contribution Guide] and my PR follows them.
• I updated my branch with the master branch.
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation about the functionality in the appropriate .md file
• I have added in line documentation to the code I modified

Short description of what this PR does:

I had missed some additional references to "whitelabeling" services initially, thus pull request #687 did not end up fixing all the verbiage issues when it was merged.

I have gone back and further changed the references to "whitelabeling" that I had missed (sorry about that!!!)

[codecov]

Codecov Report

Merging #734 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #734   +/-   ##
=======================================
  Coverage   82.48%   82.48%           
=======================================
  Files          70       70           
  Lines        2312     2312           
  Branches      340      340           
=======================================
  Hits         1907     1907           
  Misses        206      206           
  Partials      199      199

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