Replace usage of name in favor of displayname

app/models/external_user.rb

@@ -4,28 +4,11 @@ class ExternalUser < ApplicationRecord
   validates :consumer_id, presence: true
   validates :external_id, presence: true
 
-  def name
-    # Internal name, shown to teachers and administrators
-    pseudo_name
-  end
-
   def displayname
-    # External name, shown to the user itself and other users, e.g. on RfCs
-    pseudo_name
-  end
-
-  def real_name
-    # Name attribute of the object as persistet in the database
-    self[:name]
-  end
-
-  def pseudo_name
-    if real_name.blank?
+    if name.blank?
       "User " + id.to_s
     else
-      real_name
+      name
     end
   end
-  private :pseudo_name
-
 end