diff --git a/app/models/user.rb b/app/models/user.rb
index 50e058a..b790a39 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -12,38 +12,7 @@ class User < ActiveRecord::Base
 
   default_scope { order id: :desc }
 
-  def duplicate_last_personal_profile(conference)
-    if personal_profiles.any?
-      new_personal_profile = personal_profiles.last.dup
-      new_personal_profile.conference = conference
-      new_personal_profile
-    end
-  end
-
-  def find_or_initialize_personal_profile(conference)
-    if personal_profile(conference).present?
-      personal_profile(conference)
-    elsif personal_profiles.any?
-      duplicate_last_personal_profile(conference)
-    else
-      personal_profiles.build(conference: conference)
-    end
-  end
-
   def toggle_admin!
     update admin: !admin
   end
-
-  def clone_recent_profile(new_conference)
-    recent_profile = personal_profiles.order('created_at DESC').first
-
-    personal_profiles.build(conference: new_conference) do |new_profile|
-      if recent_profile.present?
-        new_profile.attributes = recent_profile.attributes.except(
-          "id", "created_at", "updated_at", "conference_id"
-        )
-        new_profile.remote_picture_url = recent_profile.picture.url
-      end
-    end
-  end
 end
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index cbae24c..155b44a 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -4,63 +4,4 @@ RSpec.describe User do
   it 'lets Devise handle email and password validations' do
     expect(build(:user)).to be_a Devise::Models::Validatable
   end
-
-  it "can clone a previous profile for use in a different conference" do
-    user = create :user
-    old_conference = create :conference
-    new_conference = create :conference
-
-    old_profile = create :personal_profile, {
-      user:       user,
-      biography:  "Old profile bio",
-      conference: old_conference
-    }
-
-    expect(user.personal_profile(old_conference)).to eq old_profile
-    expect(user.personal_profile(new_conference)).to be_nil
-
-    new_profile = user.clone_recent_profile(new_conference)
-    expect(new_profile.biography).to eq old_profile.biography
-
-    user.reload
-    user.personal_profiles << new_profile
-
-    expect(user.personal_profile(old_conference)).to eq old_profile
-    expect(user.personal_profile(new_conference)).to eq new_profile
-  end
-
-  describe '#find_or_initialize_personal_profile' do
-    context 'when the user has a personal profile for the specified conference' do
-      it 'returns the existing personal profile' do
-        user = create :user
-        conference = create :conference
-        personal_profile = create :personal_profile, user: user, conference: conference
-
-        expect(user.find_or_initialize_personal_profile(conference)).to eq personal_profile
-      end
-    end
-
-    context 'when the user has a personal profile for a previous conference' do
-      it 'returns a duplicate of the old profile' do
-        user = create :user
-        old_conference = create :conference
-        conference = create :conference
-        personal_profile = create :personal_profile, user: user, conference: old_conference
-
-        expect(user.find_or_initialize_personal_profile(conference).public_email).to be_present
-        expect(user.find_or_initialize_personal_profile(conference).public_email).to eq personal_profile.public_email
-        expect(user.find_or_initialize_personal_profile(conference)).to be_new_record
-      end
-    end
-
-    context 'when the user has no personal profiles' do
-      it 'returns a new personal profile' do
-        user = create :user
-        conference = create :conference
-
-        expect(user.find_or_initialize_personal_profile(conference)).to be_new_record
-        expect(user.find_or_initialize_personal_profile(conference).conference).to eq conference
-      end
-    end
-  end
 end