* inherit stx-metadata to help install updated files
from stx 'config-files' repo
* remove do_copy_config_files since it's not
needed after using stx-metadata
Story: 2008952
Task: 42576
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Change-Id: I54ef3a8b5436cd7f38bfe1b791ae228074a60b7d