Remove travel schedule from registration

(cherry picked from commit d18cc02f0185df39bb4213d8a63a955dfb433dcb)
Re: https://github.com/openSUSE/osem/issues/2333

app/views/conference_registrations/_form.html.haml

@@ -22,6 +22,7 @@
             = render partial: 'devise/shared/sign_up_form_embedded'
 
             = render partial: 'registration_info', locals: { f: f }
+            = f.input :conference_id, as: :hidden, value: @conference.id
             .row
               .col-md-12
                 %p.pull-right

app/views/conference_registrations/_registration_info.html.haml

@@ -24,10 +24,4 @@
             (Scheduled on: #{event.time.to_date})
       %br
 
-
-
-= f.inputs 'Your Travel Info' do
-  = f.input :arrival, as: :string, label: 'Your arrival time', hint: "Leave blank if not sure", input_html: { value: (f.object.arrival.to_formatted_s(:db_without_seconds) unless f.object.arrival.nil?), id: 'registration-arrival-datepicker',start_date: @conference.start_date,end_date: @conference.end_date }
-  = f.input :departure, as: :string, label: 'Your departure time', hint: "Leave blank if not sure", input_html: { value: (f.object.departure.to_formatted_s(:db_without_seconds) unless f.object.departure.nil?), id: 'registration-departure-datepicker' }
-
 = render 'conferences/code_of_conduct', organization: @conference.organization

app/views/conference_registrations/show.html.haml

@@ -33,28 +33,6 @@
                 data: { toggle: 'modal', target: '#modal-code-of-conduct'}
           = render 'conferences/code_of_conduct',
             organization: @conference.organization
-  .row
-    .col-md-12
-      %h4
-        %span.fa-stack
-          %i.fa.fa-square-o.fa-stack-2x
-          %i.fa.fa-plane.fa-stack-1x
-        Travel Schedule
-      %ul
-        %li
-          - if @registration.arrival.present?
-            arrive at
-            %strong
-              = @registration.arrival.strftime('%A, %B %-d. %Y %H:%M')
-          - else
-            You haven't scheduled your arrival
-        %li
-          - if @registration.departure.present?
-            depart at
-            %strong
-              = @registration.departure.strftime('%A, %B %-d. %Y %H:%M')
-          - else
-            You haven't scheduled your departure
   - if @conference.surveys.for_registration.any?
     .row
       .col-md-12