Since ElectionInProgress is not a user-visible error code, we should remove the check of ElectionInProgress for ResumableChangeStreamError.

I would also prefer to always stick with the NotMasterError/RetriableError error categories. If we think an error code is client facing and should be retryable, my preference is that we should add that error to the proper category. Special-casing error codes might cause more confusions in the long run.