[FEAT] Implement API to Delete Users in an Organization

[gr4yx01]

Description:
Develop an endpoint that allows an admin to delete users from a specific organization. This feature is crucial for maintaining accurate and up-to-date user rosters within an organization.

Acceptance Criteria:
Purpose:
Allow administrators to remove users from an organization efficiently and without encountering errors, ensuring the organization’s user list remains accurate.

Requirements:

Create an API endpoint (e.g., DELETE /api/organizations/{organizationId}/users) to delete a specified user from the organization.
Ensure the endpoint is secure and accessible only to users with administrative privileges.
Implement proper error handling to provide meaningful error messages if the deletion fails.
Expected Outcome:

Admins can successfully delete a user from an organization via the API without encountering errors.
The user is removed from the organization’s user list and database records are updated accordingly.
Appropriate success or failure messages are returned, ensuring the admin is informed of the operation’s result.