Remove the Usage of Cookies in and refactor laborStatusForms.js

[bledsoef]

• Currently, the laborStatusForms.js file uses cookies to update a table which could be done in a much easier way without conflicting with the existing Supervisor Portal cookies. These cookies are not necessary and should be removed.
• The page throws a console error about not being able to decode the term.
• Whenever a student is selected, their position is defaulted to primary, because it defaults to primary you have to unselect and reselect primary in order to be able to select a number of hours.