changed the integration script for Windows to remove residual artifacts from bin folder
changed the integration script for Windows to remove residual artifacts from bin folder

During the integration test setup, we need the artifacts from "C:\Program Files\Amazon\ECS" to be removed. Not doing so has the potential to break integration tests.

swipely/amazon-ecs-agent,aws/amazon-ecs-agent,swipely/amazon-ecs-agent,swipely/amazon-ecs-agent,aws/amazon-ecs-agent,swipely/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent,aws/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent