Remove deprecated cmSubscription code

- Newer approach for cm subscription is in progress so removing the
  deprecated code now
- Also deleted the old cache config
- Changes to trust level csit to fix the kafka unknown partition issue

Issue-ID: CPS-2028
Change-Id: Ieb19669e53f3f64cca876fa67d0b6409a97b2a09
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
41 files changed