Remove default image names from the script. They are hard-coded, and yet
ignored -- the script always takes defaults from
starlingx/clients/remote_cli/docker_image_version.sh
Story: 2010226
Task: 48668
Signed-off-by: Davlet Panech <davlet.panech@windriver.com>
Change-Id: I6c8a55e8ae77dbd7387025cf8bdbf3328ce44e31