LG-379 Stop reading old password digest columns

app/models/concerns/user_access_key_overrides.rb

@@ -17,10 +17,7 @@ def valid_password?(password)
   def password=(new_password)
     @password = new_password
     return if @password.blank?
-    digest = Encryption::PasswordVerifier.digest(@password)
-    self.encrypted_password_digest = digest.to_s
-    # Until we drop the old columns, still write to them so that we can rollback
-    write_legacy_password_attributes(digest)
+    self.encrypted_password_digest = Encryption::PasswordVerifier.digest(@password).to_s
   end
 
   # This is a devise method, which we are overriding. This should not be removed
@@ -35,13 +32,6 @@ def authenticatable_salt
 
   private
 
-  def write_legacy_password_attributes(digest)
-    self.encrypted_password = digest.encrypted_password
-    self.encryption_key = digest.encryption_key
-    self.password_salt = digest.password_salt
-    self.password_cost = digest.password_cost
-  end
-
   def log_password_verification_failure
     metadata = {
       event: 'Failure to validate password',

spec/models/user_spec.rb

@@ -417,19 +417,4 @@
       expect(user.authenticatable_salt).to eq(salt)
     end
   end
-
-  context 'when a password is updated' do
-    it 'writes encrypted_password_digest and the legacy password attributes' do
-      user = create(:user)
-
-      expected = {
-        encrypted_password: user.encrypted_password,
-        encryption_key: user.encryption_key,
-        password_salt: user.password_salt,
-        password_cost: user.password_cost,
-      }.to_json
-
-      expect(user.encrypted_password_digest).to eq(expected)
-    end
-  end
 end