Revert "[AIRFLOW-5488]Remove unused variables from tmp_configuration_…

[potiuk]

…copy method (#6114)"

This reverts commit 31b7bc9.

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Jira

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[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@5bbd00e). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master    #6120   +/-   ##
=========================================
  Coverage          ?   79.88%           
=========================================
  Files             ?      607           
  Lines             ?    34905           
  Branches          ?        0           
=========================================
  Hits              ?    27883           
  Misses            ?     7022           
  Partials          ?        0

Impacted Files	Coverage Δ
airflow/utils/configuration.py	100% <100%> (ø)

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