The blue bar at the top of the screen will be displayed if the user's role is associated with a Security Assignment, which has an associated Task Group. The Task Group controls which sections of the blue bar the user has access to. In order to remove the blue, only a role should be applied.
To edit your role and remove a security assignment:
  1. Navigate to Users & Security>Roles
  2. Click the Pencil icon next to the role
  3. Click the Security Assignments tab
  4. Click the Red X to Delete