remove university association with alumni and experiences

app/models/university/with_education.rb

@@ -21,10 +21,5 @@ module University::WithEducation
               class_name: 'Education::AcademicYear',
               dependent: :destroy
     alias_attribute :academic_years, :education_academic_years
-
-    has_many  :university_person_alumni,
-              through: :education_cohorts,
-              source: :people
-    alias_attribute :alumni, :university_person_alumni
   end
 end

app/models/university/with_people_and_organizations.rb

@@ -22,9 +22,5 @@ module University::WithPeopleAndOrganizations
               dependent: :destroy
     alias_attribute :person_alumnus_imports, :university_person_alumnus_imports
     alias_attribute :alumnus_imports, :university_person_alumnus_imports
-
-    has_many :university_person_experiences,
-              class_name: "University::Person::Experience",
-              dependent: :destroy
   end
 end