Simon Willnauer 4e4a104f4a Remove remaining index.mapper.single_type setting usage from tests (#25388)
This change removes the remaining explicitly specified `index.mapper.single_type`
settings from tests in order to allow the removal of the setting.
This is the already approved part of #25375 broken out to simplfiy reviews on
2017-06-25 12:25:41 +02:00
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