remove some unused comments

[SVN r55460]

include/boost/python/converter/builtin_converters.hpp

@@ -124,8 +124,6 @@ BOOST_PYTHON_TO_INT(long)
 
 // using Python's macro instead of Boost's - we don't seem to get the
 // config right all the time.
-// XXX(bhy) It was PyInt_Type instead of PyLong_Type here.
-// But why PyInt_Type? PyLong_From* converter is used here!
 # ifdef HAVE_LONG_LONG 
 BOOST_PYTHON_TO_PYTHON_BY_VALUE(signed BOOST_PYTHON_LONG_LONG, ::PyLong_FromLongLong(x), &PyLong_Type)
 BOOST_PYTHON_TO_PYTHON_BY_VALUE(unsigned BOOST_PYTHON_LONG_LONG, ::PyLong_FromUnsignedLongLong(x), &PyLong_Type)
@@ -144,7 +142,6 @@ BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::string, ::PyString_FromStringAndSize(x.data
 #endif
 
 #if defined(Py_USING_UNICODE) && !defined(BOOST_NO_STD_WSTRING)
-// XXX(bhy) Here, similar to the above, PyString_Type -> PyUnicode_Type
 BOOST_PYTHON_TO_PYTHON_BY_VALUE(std::wstring, ::PyUnicode_FromWideChar(x.data(),implicit_cast<ssize_t>(x.size())), &PyUnicode_Type)
 # endif 
 BOOST_PYTHON_TO_PYTHON_BY_VALUE(float, ::PyFloat_FromDouble(x), &PyFloat_Type)

include/boost/python/module_init.hpp

@@ -15,9 +15,6 @@ BOOST_PYTHON_DECL PyObject* init_module(char const* name, void(*)());
 
 }}}
 
-// TODO(bhy) Take care of this later.
-// But any reseaon we don't use BOOST_PYTHON_DECL here?
-
 #  if PY_VERSION_HEX >= 0x03000000
 
 #   define _BOOST_PYTHON_MODULE_INIT(name)              \

src/object/class.cpp

@@ -355,7 +355,6 @@ namespace objects
           PyObject* d = type_->tp_dict;
           PyObject* instance_size_obj = PyObject_GetAttrString(d, const_cast<char*>("__instance_size__"));
 
-          // TODO(bhy) ssize_t for Python 2.x
           Py_ssize_t instance_size = instance_size_obj ? 
 #if PY_VERSION_HEX >= 0x03000000
               PyLong_AsSsize_t(instance_size_obj) : 0;