remove useless code

app/models/university/person/involvement.rb

@@ -32,10 +32,6 @@ class University::Person::Involvement < ApplicationRecord
 
   belongs_to :person, class_name: 'University::Person'
   belongs_to :target, polymorphic: true
-  belongs_to  :university_role,
-              -> { where(university_person_involvements: { target_type: 'University::Role' }) },
-              class_name: "University::Role",
-              foreign_key: "target_id"
 
   validates :person_id, uniqueness: { scope: [:target_id, :target_type] }
   validates :target_id, uniqueness: { scope: [:person_id, :target_type] }

app/views/admin/education/program/roles/_involvement_fields.html.erb

@@ -6,7 +6,12 @@
         <i class="fa fa-bars handle"></i>
       </div>
       <div class="col-9">
-        <%= f.association :person, collection: @administration_people, label: false, include_blank: :translate, wrapper: false, required: true %>
+        <%= f.association :person,
+                          collection: @administration_people,
+                          label: false,
+                          include_blank: :translate,
+                          wrapper: false,
+                          required: true %>
       </div>
       <div class="col-2">
         <%= link_to_remove_association '<i class="fas fa-times"></i>'.html_safe, f, class: 'btn btn-sm btn-danger' %>