[SPARK-29161][CORE][SQL][STREAMING] Unify default wait time for waitUntilEmpty#25837

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HeartSaVioR wants to merge 4 commits intoapache:masterfrom

HeartSaVioR:MINOR-unify-default-wait-time-for-wait-until-empty

Commits on Sep 18, 2019

Commits on Sep 20, 2019

Roll back the case which wait timeout is reduced (My bad)
HeartSaVioR
committed