* 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: I46c5e71e969eb21facec0b4d2b88eb62cda98444