remove obsolete commented asserts in TextHelper tests

actionpack/test/template/text_helper_test.rb

@@ -81,10 +81,6 @@ def test_truncate_with_options_hash
   end
 
   def test_truncate_multibyte
-    # .mb_chars always returns a UTF-8 String.
-    # assert_equal "\354\225\210\353\205\225\355...",
-    #   truncate("\354\225\210\353\205\225\355\225\230\354\204\270\354\232\224", :length => 10)
-
     assert_equal "\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 ...".force_encoding('UTF-8'),
       truncate("\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 \354\225\204\353\235\274\353\246\254\354\230\244".force_encoding('UTF-8'), :length => 10)
   end
@@ -231,8 +227,6 @@ def test_excerpt_with_options_hash
 
   def test_excerpt_with_utf8
     assert_equal("...\357\254\203ciency could not be...".force_encoding('UTF-8'), excerpt("That's why e\357\254\203ciency could not be helped".force_encoding('UTF-8'), 'could', 8))
-    # .mb_chars always returns UTF-8, even in 1.9. This is not great, but it's how it works. Let's work this out.
-    # assert_equal("...\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped".force_encoding("BINARY"), 'could', 8))
   end
 
   def test_word_wrap