Remove most references to __members__ and __methods__, leaving only one pair

of references that now state that these attributes have been removed,
directing the reader to the dir() function.
This closes SF bug #456420.

Doc/lib/libfuncs.tex

@@ -205,8 +205,8 @@ def my_import(name):
   Without arguments, return the list of names in the current local
   symbol table.  With an argument, attempts to return a list of valid
   attribute for that object.  This information is gleaned from the
-  object's \member{__dict__}, \member{__methods__} and \member{__members__}
-  attributes, if defined.  The list is not necessarily complete.  For
+  object's \member{__dict__} attribute, if defined, and from the class
+  or type object.  The list is not necessarily complete.  For
   example, for classes, attributes defined in base classes are not
   included, and for class instances, methods are not included.
   The resulting list is sorted alphabetically.  For example:

Doc/lib/libstdtypes.tex

@@ -1390,16 +1390,13 @@ object's (writable) attributes.
 \end{memberdesc}
 
 \begin{memberdesc}[object]{__methods__}
-List of the methods of many built-in object types.  For example,
-\code{[].__methods__} yields \code{['append', 'count', 'index',
-'insert', 'pop', 'remove', 'reverse', 'sort']}.  This usually does not
-need to be explicitly provided by the object.
+\deprecated{2.2}{Use the built-in function \function{dir()} to get a
+list of an object's attributes.  This attribute is no longer available.}
 \end{memberdesc}
 
 \begin{memberdesc}[object]{__members__}
-Similar to \member{__methods__}, but lists data attributes.  This
-usually does not need to be explicitly provided by the object, and
-need not include the names of the attributes defined in this section.
+\deprecated{2.2}{Use the built-in function \function{dir()} to get a
+list of an object's attributes.  This attribute is no longer available.}
 \end{memberdesc}
 
 \begin{memberdesc}[instance]{__class__}