remove deprecated connection options

[strantalis]

During the deployment modes story we centralized around one custom grpc connection option.

https://github.com/opentdf/platform/blob/32c09c3993bee369401537a9370478dc519ec415/sdk/options.go#L205-L209

This issue is to track removal of the following deprecated options.

https://github.com/opentdf/platform/blob/32c09c3993bee369401537a9370478dc519ec415/sdk/options.go#L116-L135

https://github.com/opentdf/platform/blob/32c09c3993bee369401537a9370478dc519ec415/sdk/options.go#L174-L178

Acceptance Criteria:

• Update tests where needed

[cassandrabailey293]

we will probably need a custom connection for ERS once its split out. moving this ticket to next sprint once that is completed, we can work this one