* annotate.h (deprecated_annotate_starting_hook): Remove.

	* annotate.h (deprecated_annotate_starting_hook): Remove.
	(deprecated_annotate_stopped_hook): Remove.
	(deprecated_annotate_exited_hook): Remove.
	* Makefile.in (annotate.o): Depend on observer_h.
	* top.c (deprecated_delete_breakpoint_hook): Remove.
	(deprecated_create_breakpoint_hook): Likewise.
	(deprecated_modify_breakpoint_hook): Likewise.
	* interps.c (clear_interpreter_hooks): Update for removed hooks.
	* breakpoint.c (mention): Don't call removed hook.
	(delete_breakpoint): Likewise.
	(disable_breakpoint): Likewise.
	(do_enable_breakpoint): Likewise.
	* annotate.c: Include observer.h.
	(breakpoint_changed): Change type of argument.
	(_initialize_annotate): Register observers.
	(deprecated_annotate_starting_hook): Remove.
	(deprecated_annotate_stopped_hook): Remove.
	(deprecated_annotate_exited_hook): Remove.
	(annotate_starting): Update for hook removal.
	(annotate_stopped): Likewise.
	(annotate_exited): Likewise.
	* defs.h (deprecated_delete_breakpoint_hook): Remove.
	(deprecated_create_breakpoint_hook): Likewise.
	(deprecated_modify_breakpoint_hook): Likewise.