Remove `bundle.connection.config/insecureSkipTLSVerify` annotation

[tmshort]

The bundle.connection.config/insecureSkipTLSVerify annotation was added to ClusterExtensions to allow TLS connections to local docker registries to succeed. This should be removed before v1.0.0.

It should be replaced with an API update to support skip TLS verify and/or a certificate secret/configmap/something.

There may also be a need to update the deplpoyment of the operator-controller to support certificates.