Remove Sentry error logging for streaming configurations

Problem to solve

Currently when a creating a streaming audit event destination there are certain requirements and limitations on the fields.

These requirements and limitations are shown to user and prevent the stream from being created or edited.

But it also logs these errors to Sentry:

Validation failed: Maximum number of external audit event destinations (5) exceeded, Name is too long (maximum is 72 characters) (ActiveRecord::RecordInvalid)

But they are not errors that are actionable.

Proposal

Remove these errors from Sentry logging