[#345] remove unneeded constraint

config/routes.rb

@@ -357,7 +357,6 @@ Rosa::Application.routes.draw do
       post '/sections' => 'projects#sections'
       delete '/remove_user' => 'projects#remove_user', as: :remove_user_project
       # constraints treeish: /[\w\-\.]+(\/[\w\-\.]+)?/ do
-      constraints treeish: /[\w\-\.]+/ do
       constraints Rosa::Constraints::Treeish do
         # Tree
         get '/' => "git/trees#show", as: :project
@@ -398,7 +397,6 @@ Rosa::Application.routes.draw do
       end
     end
   end
-  end
 
   scope ':uname' do # project owner profile
     constraints Rosa::Constraints::Owner.new(User) do