Revert "Update params in test usage of showRecentApps"

Revert submission 20956764-alt_tab_forward

Reason for revert: Actually we dont need these changes after all. SHIFT doesn't matter in the initial tab to overview. The subsequent tabs are handled by RecentsView and we already have a check on shift

Reverted changes: /q/submissionid:20956764-alt_tab_forward

Change-Id: Ia5adaa9bd8b8e9f4c9c604acb1bc89dd000f283e