pcmcia: remove useless indirection

As release_resoure_db() used to be called only from one place, and
it's a two-line function, remove it.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 137a5db..43c90f6 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -283,7 +283,8 @@
 	up_write(&pcmcia_socket_list_rwsem);
 
 	/* wait for sysfs to drop all references */
-	release_resource_db(socket);
+	if (socket->resource_ops->exit)
+		socket->resource_ops->exit(socket);
 	wait_for_completion(&socket->socket_released);
 } /* pcmcia_unregister_socket */
 EXPORT_SYMBOL(pcmcia_unregister_socket);