pcmcia: cs: Remove unused pcmcia_get_socket_by_nr

The last use of pcmcia_get_socket_by_nr() was removed in 2010 by
commit 5716d415f8c5 ("pcmcia: remove obsolete ioctl")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/pcmcia/cs.c

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index c75f55e..adbc486 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -229,23 +229,6 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket)
 EXPORT_SYMBOL(pcmcia_unregister_socket);
 
 
-struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr)
-{
-	struct pcmcia_socket *s;
-
-	down_read(&pcmcia_socket_list_rwsem);
-	list_for_each_entry(s, &pcmcia_socket_list, socket_list)
-		if (s->sock == nr) {
-			up_read(&pcmcia_socket_list_rwsem);
-			return s;
-		}
-	up_read(&pcmcia_socket_list_rwsem);
-
-	return NULL;
-
-}
-EXPORT_SYMBOL(pcmcia_get_socket_by_nr);
-
 static int socket_reset(struct pcmcia_socket *skt)
 {
 	int status, i;

drivers/pcmcia/cs_internal.h

diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h
index 02a83ca..5ac810f 100644
--- a/drivers/pcmcia/cs_internal.h
+++ b/drivers/pcmcia/cs_internal.h
@@ -116,7 +116,6 @@ extern struct list_head pcmcia_socket_list;
 extern const struct class pcmcia_socket_class;
 
 int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
-struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr);
 
 void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events);
 #define PCMCIA_UEVENT_EJECT	0x0001