This reverts r63675 based on the discussion in this thread:

 http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
diff --git a/Modules/_sqlite/connection.h b/Modules/_sqlite/connection.h
index c5d0fd0..3b1c632 100644
--- a/Modules/_sqlite/connection.h
+++ b/Modules/_sqlite/connection.h
@@ -80,7 +80,7 @@
     /* Determines how bytestrings from SQLite are converted to Python objects:
      * - PyUnicode_Type:        Python Unicode objects are constructed from UTF-8 bytestrings
      * - OptimizedUnicode:      Like before, but for ASCII data, only PyStrings are created.
-     * - PyBytes_Type:         PyStrings are created as-is.
+     * - PyString_Type:         PyStrings are created as-is.
      * - Any custom callable:   Any object returned from the callable called with the bytestring
      *                          as single parameter.
      */