core: remove unnecessary secret validation
core: remove unnecessary secret validation

We don't need to validate the name of Ceph-CSI secret, simply because
the names can be different. The default example have default names but
since the secret can be created by the administrator we should not
assume anything. This check will fail if the secret names are different
for whatever reason. This is especially true for external mode. In
converged mode Rook creates the secrets on its own if needed to ease the
integration with the default StorageClass examples.

Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/rook