[PATCH 2/5] ptrace/powerpc: Revert "hw_breakpoints: Fix racy access to ptrace breakpoints"

This reverts commit 07fa7a0a8a586c01a8b416358c7012dcb9dc688d and removes ptrace_get/put_breakpoints() added by other commits. The patch was fine but we can no longer race with SIGKILL after 9899d11f "ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL", the __TASK_TRACED tracee

[PATCH 2/5] ptrace/powerpc: Revert hw_breakpoints: Fix racy access to ptrace breakpoints

This reverts commit 07fa7a0a8a586c01a8b416358c7012dcb9dc688d and removes ptrace_get/put_breakpoints() added by other commits. The patch was fine but we can no longer race with SIGKILL after 9899d11f ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL, the __TASK_TRACED tracee