[SO] Remove so-db-secrets

so-db-secrets was used to create secrets
for db creds. But now, they are being created
from secrets metaconfig. It is not needed

Issue-ID: OOM-2534
Signed-off-by: Krishna Moorthy <krishna.moorthy6@wipro.com>
Change-Id: I0f0514b0b704e4643253b793ea4bd9ad92329759
30 files changed