Remove unused @project in new project button

Author: ruralocity

app/views/projects/index.html.erb

@@ -1,7 +1,7 @@
 <h1>
   Projects
 
-  <%= link_to new_project_path(@project), class: "btn btn-primary" do %>
+  <%= link_to new_project_path, class: "btn btn-primary" do %>
     <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
     New Project
   <% end %>