remove x-ms-authorization-auxiliary header

[yugangw-msft]

This header contains tokens used to access resource from other tenants for scenarios like 'vnet peering', 'vm image sharing'

//cc: @troydai

[codecov-io]

Codecov Report

Merging #46 into master will not change coverage.
The diff coverage is n/a.

@@         Coverage Diff          @@
##           master   #46   +/-   ##
====================================
  Coverage      50%   50%           
====================================
  Files          10    10           
  Lines         438   438           
  Branches       72    72           
====================================
  Hits          219   219           
  Misses        213   213           
  Partials        6     6

Impacted Files	Coverage Δ
src/azure_devtools/scenario_tests/base.py	37.9% <ø> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 29150dc...0d3fb0b. Read the comment docs.

[troydai]

Two questions:

1. Will this break existing recordings? (I don't think so.)
2. Can you update the setup.py so we can create a new release. This can fit into a patch update as long as no tests are broken ( -> 1.0.1)

[yugangw-msft]

@troydai, it will not break any existing recordings, this header is optional, and rarely used