Revert "Demoting testLaunchAppInSplitscreen_fromTaskbarAllApps from presubmit"

This reverts commit 120b5876dac11590ca3182c47df10143c918eb15.

Reason for revert: The leak simply moved to the next test method. So, looks like the leak originated in the previous test.

Change-Id: Ia24e31338af7eb1902a945fa92e0aa19aaddcd83
1 file changed