Fixed view specs

spec/views/projects/commit/show.html.haml_spec.rb

 require 'spec_helper'
 
 describe 'projects/commit/show.html.haml', :view do
-  let(:user) { create(:user) }
   let(:project) { create(:project, :repository) }
 
   before do
@@ -12,7 +11,7 @@ describe 'projects/commit/show.html.haml', :view do
     assign(:notes, [])
     assign(:diffs, project.commit.diffs)
 
-    allow(view).to receive(:current_user).and_return(user)
+    allow(view).to receive(:current_user).and_return(nil)
     allow(view).to receive(:can?).and_return(false)
     allow(view).to receive(:can_collaborate_with_project?).and_return(false)
     allow(view).to receive(:current_ref).and_return(project.repository.root_ref)