Apply suggestions from code review

Co-authored-by: Petr Viktorin <[email protected]>

Author: sergey-miryanov

Doc/library/ctypes.rst

@@ -2354,7 +2354,7 @@ Data types
 
    .. attribute:: __pointer_type__
 
-      This attributes is a pointer type that was created by calling
+      The pointer type that was created by calling
       :func:`POINTER` for corresponding ctypes data type. If a pointer type
       was not yet created, the attribute is missing.
 

Lib/test/test_ctypes/test_c_simple_type_meta.py

@@ -243,7 +243,6 @@ def __init__(self, name, bases, dct, /, create_pointer_type=True):
                     ns = {'_type_': self}
                     internal_pointer_type = PointerMeta(f"p{name}", p_bases, ns)
                     assert isinstance(internal_pointer_type, PyCPointerType)
-                    assert self.__pointer_type__ is not None
                     assert self.__pointer_type__ is internal_pointer_type
 
         class PointerMeta(PyCPointerType):
@@ -307,7 +306,6 @@ def __init__(self, name, bases, dct, /, create_pointer_type=True):
                     ns = {'_type_': self}
                     internal_pointer_type = PointerMeta(f"p{name}", p_bases, ns)
                     assert isinstance(internal_pointer_type, PyCPointerType)
-                    assert self.__pointer_type__ is not None
                     assert self.__pointer_type__ is internal_pointer_type
 
         class PointerMeta(PyCPointerType):