Log Message:
py-psutil: Update to 5.6.3

pkgsrc changes:
 - Remove no longer needed patch hunks (applied upstream)

Changes:
5.6.3
=====
2019-06-11
Enhancements
------------
 - 1494: [AIX] added support for Process.environ().  (patch by Arnon Yaari)

Bug fixes
---------
 - 1276: [AIX] can't get whole cmdline().  (patch by Arnon Yaari)
 - 1501: [Windows] Process cmdline() and exe() raise unhandled "WinError 1168
   element not found" exceptions for "Registry" and "Memory \ 
Compression" psuedo
   processes on Windows 10.
 - 1526: [NetBSD] process cmdline() could raise MemoryError.  (patch by
   Kamil Rytarowski)