Clean up Darkfish-era test artifacts

- Return 404 for table_of_contents.html in servlet since
  Aliki does not have a table_of_contents template
- Remove tautological font assertions from aliki_test that
  only existed to contrast with the now-removed Darkfish theme

Author: st0012

lib/rdoc/servlet.rb

@@ -392,7 +392,12 @@ def show_documentation(req, res)
     when nil, '', 'index.html' then
       res.body = generator.generate_index
     when 'table_of_contents.html' then
-      res.body = generator.generate_table_of_contents
+      result = generator.generate_table_of_contents
+      if result
+        res.body = result
+      else
+        not_found generator, req, res
+      end
     when 'js/search_index.js' then
       documentation_search store, generator, req, res
     else

test/rdoc/generator/aliki_test.rb

@@ -81,10 +81,6 @@ def test_write_style_sheet_copies_css_and_js_only
     assert_file 'js/search_ranker.js'
     assert_file 'js/theme-toggle.js'
     assert_file 'js/c_highlighter.js'
-
-    # Aliki should NOT have fonts
-    refute File.exist?('css/fonts.css'), 'Aliki should not copy fonts.css'
-    refute File.exist?('fonts'), 'Aliki should not copy fonts directory'
   end
 
   # Aliki-specific: verify version query strings on asset references

test/rdoc/rdoc_servlet_test.rb

@@ -432,9 +432,7 @@ def test_show_documentation_table_of_contents
 
     @s.show_documentation @req, @res
 
-    assert_equal 'text/html', @res.content_type
-    # Aliki does not have a table_of_contents template, so the body is nil
-    assert_nil @res.body
+    assert_equal 404, @res.status
   end
 
   def test_show_documentation_page