Some "-Wall" cleanups.

	Some "-Wall" cleanups.

	* generic/gdbtk-hooks.c (x_event): Remove unused variable "count".
	(tracepoint_notify): Remove superfluous declaration. This funtion
	was moved to gdbtk-bp.c.

	* generic/gdbtk-bp.c (gdb_find_bp_at_addr): Remove unused variable
	"b".
	(gdb_set_bp): Remove unused variable "cmd".
	(gdb_set_bp_addr): Remove unused variables "cmd" and "filename".

	* generic/gdbtk.c (gdbtk_init): Remove unused variables
	"auto_path_name", "auto_path_elem", and "found_main".