Revert "[platform process list] add a flag for showing the processes of all users" This reverts commit 08781f4c53a177662c029d3da9c407ba65ae6747. git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@374621 91177308-0d34-0410-b5e6-96231b3b80d8