Remove unnecessary spacing in work packages forms

Signed-off-by: Alex Coles <alex@alexbcoles.com>

app/views/work_packages/_edit.html.erb

@@ -67,17 +67,12 @@ See doc/COPYRIGHT.rdoc for more details.
                                                          :notes => work_package.journal_notes,
                                                          :form => f }) %>
 
-  <hr class="form--separator -invisible">
-
   <% if authorize_for('timelog', 'edit') %>
     <%= render :partial => 'time_entry',
                :locals => { :time_entry => time_entry,
                             :f => f } %>
   <% end %>
 
-
-  <hr class="form--separator -invisible">
-
   <%= render :partial => 'attachments/nested_form',
              :locals => { :prefix => 'work_package' } %>
 

app/views/work_packages/_form.html.erb

@@ -97,8 +97,6 @@ See doc/COPYRIGHT.rdoc for more details.
 <% end %>
 
 <% if work_package.new_record? %>
-  <hr class="form--separator -invisible">
-
   <%= render :partial => 'attachments/nested_form', locals: { open: true } %>
 <% end %>