* remote.c (remote_close): Unregister remote_desc from the event

	* remote.c (remote_close): Unregister remote_desc from the event
	loop.  Always restore the SIGINT handler.  Discard all inferiors
	here.
	(remote_detach_1, remote_disconnect): Don't unregister the file
	descriptor from the event loop here.
	(interrupt_query, readchar, getpkt_sane): Pop the target instead
	of morning the current inferior.
	(remote_kill): Don't unregister the file descriptor from the event
	loop here.
	(remote_mourn_1): Don't discard inferiors here.