Remove users info api call

[pichsenmeister]

Summary

This pull request fixes #346 by removing users.info call from SingleTeamAuthorization, since this information is now part of the auth.test response payload.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

Merging #347 into master will decrease coverage by 0.35%.
The diff coverage is 50%.

@@           Coverage Diff            @@
##           master   #347      +/-   ##
========================================
- Coverage   73.35%    73%   -0.36%     
========================================
  Files           7      7              
  Lines         503    500       -3     
  Branches      146    146              
========================================
- Hits          369    365       -4     
- Misses        102    103       +1     
  Partials       32     32

Impacted Files	Coverage Δ
src/ExpressReceiver.ts	50.96% <ø> (ø)	⬆️
src/App.ts	78.23% <50%> (-0.96%)	⬇️

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[aoberoi]

(used admin override to merge even though codecov wasn't satisfied)