greybus: svc: remove interface->svc pointer

Its not updated/used anymore, remove it. Also move back the struct
gb_svc to svc.c as its not referenced by external users anymore.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Perry Hung <perry@leaflabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/interface.h

@@ -14,7 +14,6 @@
 struct gb_interface {
 	struct device dev;
 	struct gb_control *control;
-	struct gb_svc *svc;
 
 	struct list_head bundles;
 	struct list_head links;	/* greybus_host_device->interfaces */

drivers/staging/greybus/svc.c

@@ -9,6 +9,12 @@
 
 #include "greybus.h"
 
+struct gb_svc {
+	struct gb_connection	*connection;
+	u8			version_major;
+	u8			version_minor;
+};
+
 static struct ida greybus_svc_device_id_map;
 
 /*

drivers/staging/greybus/svc.h

@@ -10,12 +10,7 @@
 #ifndef __SVC_H
 #define __SVC_H
 
-struct gb_svc {
-	struct gb_connection	*connection;
-	u8			version_major;
-	u8			version_minor;
-};
-
+struct gb_svc;
 
 int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
 int gb_svc_intf_reset(struct gb_svc *svc, u8 intf_id);