shut up a few sphinx warnings

Doc/c-api/buffer.rst

@@ -50,6 +50,7 @@ could be used to pass around structured data in its native, in-memory format.
       A pointer to the start of the memory for the object.
 
    .. cmember:: Py_ssize_t len
+      :noindex:
 
       The total length of the memory in bytes.
 
@@ -58,6 +59,7 @@ could be used to pass around structured data in its native, in-memory format.
       An indicator of whether the buffer is read only.
 
    .. cmember:: const char *format
+      :noindex:
 
       A *NULL* terminated string in :mod:`struct` module style syntax giving the
       contents of the elements available through the buffer.  If this is *NULL*,

Doc/glossary.rst

@@ -430,8 +430,6 @@ Glossary
       versatile features like :attr:`__slots__`, descriptors, properties,
       :meth:`__getattribute__`, class methods, and static methods.
 
-      More information can be found in :ref:`newstyle`.
-
    object
       Any data with state (attributes or value) and defined behavior
       (methods).  Also the ultimate base class of any :term:`new-style