remove Tree/Commit decorator usage from controllers

app/controllers/commits_controller.rb

@@ -13,8 +13,6 @@ class CommitsController < ProjectResourceController
     @limit, @offset = (params[:limit] || 40), (params[:offset] || 0)
     @commits = @repo.commits(@ref, @path, @limit, @offset)
-    @commits = Commit.decorate(@commits)
-    @commits = CommitDecorator.decorate_collection(@commits)
     respond_to do |format|
       format.html # index.html.erb

app/controllers/compare_controller.rb

@@ -15,8 +15,6 @@ class CompareController < ProjectResourceController
     @diffs         = result[:diffs]
     @refs_are_same = result[:same]
     @line_notes    = []
-
-    @commits = CommitDecorator.decorate_collection(@commits)
   end
   def create

app/controllers/merge_requests_controller.rb

@@ -94,12 +94,10 @@ class MergeRequestsController < ProjectResourceController
   def branch_from
     @commit = @repository.commit(params[:ref])
-    @commit = CommitDecorator.decorate(@commit)
   end
   def branch_to
     @commit = @repository.commit(params[:ref])
-    @commit = CommitDecorator.decorate(@commit)
   end
   def ci_status
@@ -143,7 +141,6 @@ class MergeRequestsController < ProjectResourceController
     # Get commits from repository
     # or from cache if already merged
     @commits = @merge_request.commits
-    @commits = CommitDecorator.decorate_collection(@commits)
     @allowed_to_merge = allowed_to_merge?
     @show_merge_controls = @merge_request.opened? && @commits.any? && @allowed_to_merge

app/controllers/refs_controller.rb

@@ -34,7 +34,6 @@ class RefsController < ProjectResourceController
     @logs = contents.map do |content|
       file = params[:path] ? File.join(params[:path], content.name) : content.name
       last_commit = @repo.commits(@commit.id, file, 1).last
-      last_commit = CommitDecorator.decorate(last_commit)
       {
         file_name: content.name,
         commit: last_commit
@@ -49,9 +48,7 @@ class RefsController < ProjectResourceController
     @repo = project.repository
     @commit = @repo.commit(@ref)
-    @commit = CommitDecorator.decorate(@commit)
     @tree = Tree.new(@commit.tree, @ref, params[:path])
-    @tree = TreeDecorator.new(@tree)
     @hex_path = Digest::SHA1.hexdigest(params[:path] || "")
     if params[:path]