Remove the st_* shortcuts

pep-0428.txt

@@ -221,8 +221,6 @@ Some examples::
     PosixPath('pathlib/setup.py')
     >>> p.exists()
     True
-    >>> p.st_size
-    928
 
 
 Pure paths API
@@ -560,14 +558,6 @@ but doesn't have any caching behaviour::
     >>> p.stat()
     posix.stat_result(st_mode=33277, st_ino=7483155, st_dev=2053, st_nlink=1, st_uid=500, st_gid=500, st_size=928, st_atime=1343597970, st_mtime=1328287308, st_ctime=1343597964)
 
-For ease of use, direct attribute access to the fields of the stat structure
-is provided over the path object itself::
-
-    >>> p.st_size
-    928
-    >>> p.st_mtime
-    1328287308.889562
-
 Higher-level methods help examine the kind of the file::
 
     >>> p.exists()