Remove feature flag VA_PROFILE_SMS_STATUS_ENABLED

[MackHalliday]

User Story - Business Need

We need to remove the VA_PROFILE_SMS_STATUS_ENABLED feature flag once sufficient time has passed and feature works as expected.

• Ticket is understood, and QA has been contacted (if the ticket has a QA label).

User Story(ies)

As a VA Notify developer
I want remove the VA_PROFILE_SMS_STATUS_ENABLED feature flag
So that code is clean and continues to be maintainable.

Additional Info and Resources

• Feature flag was included as apart of user story Send VA Profile data on SMS Notification Delivery status #2137

Acceptance Criteria

• Feature flag is removed VA_PROFILE_SMS_STATUS_ENABLED from code path, task definitions, and tests
• SMS notifications statuses continue to send to VA Profile without error
• Any related tests are updated or removed
• This work is added to the sprint review slide deck (key win bullet point and demo slide)

QA Considerations

• Validate that sms and email notifications are sent to VA Profile without error.

Potential Dependencies

Need to be okayed by VA Profile - Ksenia/Kyle with coordinate