Delete temporary files after acloud create with remote host.

BUG:146056068
Test: acloud-dev create then get the {gce_ip_address} from report.
acloud-dev create --host {gce_ip_address}
or
acloud-dev create --host {rockpi ip address}

Change-Id: I62fac272fce68a5260fdf6baac310a60852ecf00
4 files changed