get_prev_frame, outer_frame_id and unwind->stop_reason checks are redundant.

get_prev_frame, outer_frame_id and unwind->stop_reason checks are redundant.

After the previous patch, it should be clear that the
this_frame->unwind->stop_reason check is redundant with the
outer_frame_id check just below.  We can now move the frame_id_eq
comparison to the default this_frame->unwind->stop_reason callback.

Tested on x86_64 Fedora 17.

gdb/
2013-11-28  Pedro Alves  <palves@redhat.com>

	* frame-unwind.c (default_frame_unwind_stop_reason): Return
	UNWIND_OUTERMOST if the frame's ID is outer_frame_id.
	* frame.c (get_prev_frame_1): Remove outer_frame_id check.