[ Merge of http://go/wvgerrit/66002 ]
Client authentication was needed when licenses were requested from
the Play movies license service. For UAT/staging client authentication
is set to the empty string.
The play movies license service has not been used recently for testing.
Also, client authentication has not been supported as one of the
command line arguments. This was even before the command line parameters
were consolidated in TestBase.
Since it is not possible to specify client authentication on the
command line, the configured(default) value is always used.
This CL will remove code in the test to check if it has
been specified on the command line. It can be added back later,
if we decide to support client authentication as an option.
b/119221644
Test: WV unit/integration tests
Change-Id: I4a7fab5ec27b4897c9a73bd3ff34615d8ae11c28
49f518a911