fix cap tasks

lib/capistrano/tasks/nginx.rake

@@ -1,28 +0,0 @@
-namespace :nginx do
-  desc "Shut down Nginx"
-  task :stop do
-    on roles(:web) do
-      as :user => "root" do
-        execute "/etc/init.d/nginx", "stop"
-      end
-    end
-  end
-
-  desc "Start Nginx"
-  task :start do
-    on roles(:web) do
-      as :user => "root" do
-        execute "/etc/init.d/nginx", "start"
-      end
-    end
-  end
-
-  desc "Reload Nginx"
-  task :reload do
-    on roles(:web) do
-      as :user => "root" do
-        execute "/etc/init.d/nginx", "reload"
-      end
-    end
-  end
-end