gdb/
	* infcmd.c (step_once): Don't check '!single_inst' as it was
	checked before.
gdb/gdbserver/
	* linux-low.c (linux_resume_one_lwp): Don't check
	'lwp->bp_reinsert != 0'.
gdb/
	* printcmd.c (current_display_number): Make it static.