Move calls to DisableAllBreakpointSites() and m_thread_list.DiscardThreadPlans() into base Process::Destroy() instead of in subclass DoDestroy() methods.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@204752 91177308-0d34-0410-b5e6-96231b3b80d8