Dmitry Tantsur ab69cca0ce Get rid of ci_testing variable in roles
The roles should not change their behavior based on the presence of Zuul.
Use the existing copy_from_local_path variable to copy pre-cached
repositories. Also get rid of the redundant ci_testing_zuul.

Change-Id: Idfdfe2087b020cd8069d1088991e088873783825
2020-07-09 12:14:53 +02:00
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