* inf-ptrace.c (inf_ptrace_prepare_to_store)

* inf-ptrace.c (inf_ptrace_prepare_to_store)
(inf_ptrace_post_startup_inferior)
(inf_ptrace_acknowledge_created_inferior)
(inf_ptrace_insert_fork_catchpoint)
(inf_ptrace_remove_fork_catchpoint)
(inf_ptrace_insert_vfork_catchpoint):
(inf_ptrace_remove_vfork_catchpoint, inf_ptrace_follow_fork)
(inf_ptrace_insert_exec_catchpoint)
(inf_ptrace_remove_exec_catchpoint): Remove functions.
(inf_ptrace_reported_exec_events_per_exec_call): Tweak comment.
(inf_ptrace_target): Don't set to_prepare_to_store,
to_post_startup_inferior, to_acknowledge_created_inferior,
to_insert_fork_ctachpoint, to_remove_fork_catchpoint,
to_insert_vfork_catchpoint, to_remove_vfork_catchpoint,
to_follow_fork, to_insert_exec_catchpoint,
to_remove_exec_catchpoint.