[PLATFORM] Remove certificate generation deployment

- remove certificate generation deployment
- change certificate secret for provider (from server to client)
- correct documentation

Issue-ID: OOM-2712
Signed-off-by: Piotr Marcinkiewicz <piotr.marcinkiewicz@nokia.com>
Change-Id: I21a8e277e1fd5f5190c7b67fb6ef97c1b3355230
7 files changed