* infcall.c (run_inferior_call): Remove references to
suppress_stop_observer.
* infcmd.c (suppress_stop_observer): Delete.
(finish_command_continuation): Remove NOTE. Don't clear
suppress_stop_observer anymore.
(finish_command_continuation_free_arg): Likewise.
(finish_forward): Remove references to suppress_stop_observer.
Call normal_stop observer if we haven't already.
* inferior.h (suppress_stop_observer): Delete.
* infrun.c (normal_stop): When deciding to suppress the
normal_stop observer, check for proceed_to_finish instead of
suppress_stop_observer.