[MacPorts] #64396: samba4: Update to 4.15.3

[MacPorts]

#64396: samba4: Update to 4.15.3
-------------------------+------------------------
  Reporter:  BjarneDMat  |      Owner:  ryandesign
      Type:  update      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:  fixed       |   Keywords:  haspatch
      Port:  samba4      |
-------------------------+------------------------

Comment (by ryandesign):

 Agreed, thanks. I didn't notice any reference to that bug report URL, and
 the patch still applied to the code after being refreshed; I didn't
 realize they had fixed the problem in a different place in the code.
 Perhaps we can remove the patch at the same time that we fix #64403.

-- 
Ticket URL: <https://trac.macports.org/ticket/64396#comment:21>
MacPorts <https://www.macports.org/>
Ports system for macOS