Clean up playground happy stacks #19

Job	Run time
Find examples	5s
Clean prod happy stacks (ecs_test_app)	7s
Clean prod happy stacks (image_pipeline)	7s
Clean prod happy stacks (integration_test)	7s
Clean prod happy stacks (nodejs_downstream)	7s
Clean prod happy stacks (sidecar)	7s
Clean prod happy stacks (sidecar_with_ssl)	6s
Clean prod happy stacks (target_group_only)	7s
Clean prod happy stacks (tasks)	7s
Clean prod happy stacks (typical_app)	7s
Clean rdev happy stacks (ecs_test_app)	18s
Clean rdev happy stacks (image_pipeline)	18s
Clean rdev happy stacks (integration_test)	19s
Clean rdev happy stacks (nodejs_downstream)	19s
Clean rdev happy stacks (sidecar)	18s
Clean rdev happy stacks (sidecar_with_ssl)	20s
Clean rdev happy stacks (target_group_only)	18s
Clean rdev happy stacks (tasks)	18s
Clean rdev happy stacks (typical_app)	19s
Clean staging happy stacks (ecs_test_app)	7s
Clean staging happy stacks (image_pipeline)	7s
Clean staging happy stacks (integration_test)	7s
Clean staging happy stacks (nodejs_downstream)	7s
Clean staging happy stacks (sidecar)	7s
Clean staging happy stacks (sidecar_with_ssl)	7s
Clean staging happy stacks (target_group_only)	7s
Clean staging happy stacks (tasks)	7s
Clean staging happy stacks (typical_app)	7s
	4m 57s

Provide feedback