Remove deprecated 'show parkedcalls' CLI command

(closes issue #13038)
Reported by: eliel
Patches:
      finish.deprecate.patch uploaded by eliel (license 64)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@129581 65c4cc65-6c06-0410-ace0-fbb531ad65f3