Move remote cleanup functions to cvd_utils am: f0ddb0052d

Original change: https://android-review.googlesource.com/c/platform/tools/acloud/+/2063889

Change-Id: Ic85a382c68436508fafaaba4bbd131cdf251bff8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>