Remove subcategories matching on reviewers ability (#213)

app/models/ability.rb

@@ -93,19 +93,13 @@ class Ability
       # Submitters can read events they are involved in
       # Can read events of the subcategory that they have submitted an individual paper in
       can :read, Event do |event|
-        @user.person.in?(event.people) or
-            if @user.person.submitted_individual_paper_in?(@conference)
-              event.subcategory.in?(@user.person.subcategories_submitted_in(@conference))
-            else
-              false
-            end
+        @user.person.in?(event.people)
       end
 
       can :reserve_for_peer_review, Event do |event|
         @user.person.submitted_individual_paper_in?(@conference)                    and # has submitted individual paper in the conference
         event.event_type == 'Individual Paper'                                      and # Is Individual Paper
         event.conference == @conference                                             and # Is in the correct conference
-        event.subcategory.in?(@user.person.subcategories_submitted_in(@conference)) and # Is of the right subcategory
         not event.review_reservations.where(person: @user.person).any?              and # Has not already been reserved by user
         not event.event_ratings.where(person: @user.person).any?                    and # Has not already reviewed
         (event.ratings_by_submitters + event.peer_review_reservations_count) < 2    and # has neither 2 reviews by peers, nor 2 reservations, nor 1 review 1 reservation