remove unnecessary functions

app/helpers/application_helper.rb

@@ -38,45 +38,6 @@ module ApplicationHelper
     time.strftime('%F %R') + ' ' + @conference.timezone.to_s
   end
 
-  ##
-  # Checks if the voting has already started, or if it has already ended
-  #
-  def voting_open_or_close(program)
-    return if program.voting_period?
-    if program.voting_start_date > Time.current
-      return 'Voting period has not started yet!'
-    else # voting_end_date > Date.today because voting_start_date < voting_end_date
-      return 'Voting period is over!'
-    end
-  end
-
-  ##
-  # Gets an EventType object, and returns its length in timestamp format (HH:MM)
-  # ====Gets
-  # * +Integer+ -> 30
-  # ====Returns
-  # * +String+ -> "00:30"
-  def length_timestamp(length)
-    [length / 60, length % 60].map { |t| t.to_s.rjust(2, '0') }.join(':')
-  end
-
-  ##
-  # Gets a datetime object
-  # ====Returns
-  # * +String+ -> formated datetime object
-  def format_datetime(obj)
-    return unless obj
-    obj.strftime('%Y-%m-%d %H:%M')
-  end
-
-  ##
-  # ====Returns
-  # * +String+ -> number of registrations / max allowed registrations
-  def registered_text(event)
-    return "Registered: #{event.registrations.count}/#{event.max_attendees}" if event.max_attendees
-    "Registered: #{event.registrations.count}"
-  end
-
   # Set resource_name for devise so that we can call the devise help links (views/devise/shared/_links) from anywhere (eg sign_up form in proposals#new)
   def resource_name
     :user