Remove unused blueprint invitations view

app/views/invitations/new_blueprint.html.haml

-.span-15.last
-  .span-3
-    .icons-monotone_email_letter_round
-
-  .span-12.last
-    %h2
-      = t('invitations.new.invite_someone_to_join')
-      %br
-  .span-7.append-1.last
-    %b= t('invitations.new.paste_link')
-    %br
-    %br
-    = invite_link(@invite_code)
-    = t('invitations.new.codes_left', :count => @invite_code.count)
-    %br
-    %br
-    #email_invitation
-
-      = form_tag new_user_invitation_path  do
-        %h4
-          = t('email')
-        = text_field_tag 'email_inviter[emails]', @invalid_emails, :title => t('invitations.new.comma_separated_plz'), :placeholder => 'foo@bar.com, max@foo.com...'
-        %p
-          = t('invitations.create.note_already_sent', :emails => @valid_emails) unless @valid_emails.empty?
-        %br
-
-        %h4
-          = t('invitations.new.language')
-        = select_tag('email_inviter[locale]',  options_from_collection_for_select(available_language_options, "second", "first", :selected => current_user.language))
-
-        %br
-
-        %p
-          = submit_tag t('invitations.new.send_an_invitation'), data: {disable_with: t('invitations.new.sending_invitation')}