remove unused deletion code from user

test/unit/user_test.rb

@@ -14,29 +14,6 @@ class UserTest < ActiveSupport::TestCase
       CurrentUser.ip_addr = nil
     end
 
-    context "that has been deleted" do
-      setup do
-        @post = FactoryGirl.create(:post)
-        Favorite.add(@post, @user)
-        @user.delete!
-        @post.reload
-      end
-
-      should "rename the user" do
-        assert_equal("user#{@user.id}", @user.name)
-      end
-
-      should "remove all favorites" do
-        assert_equal(0, @user.favorite_count)
-        assert_equal(0, Favorite.for_user(@user.id).count)
-        assert_equal("", @post.fav_string)
-      end
-
-      should "reset the password" do
-        assert_nil(User.authenticate(@user.name, "password"))
-      end
-    end
-
     context "favoriting a post" do
       setup do
         @user.update_column(:favorite_count, 999)