persistent_ram: Remove prz->node

The 'node' struct member is unused, so remove it.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/android/persistent_ram.c b/drivers/staging/android/persistent_ram.c
index 8407112..12444fd 100644
--- a/drivers/staging/android/persistent_ram.c
+++ b/drivers/staging/android/persistent_ram.c
@@ -407,8 +407,6 @@
 		goto err;
 	}
 
-	INIT_LIST_HEAD(&prz->node);
-
 	ret = persistent_ram_buffer_init(dev_name(dev), prz);
 	if (ret) {
 		pr_err("persistent_ram: failed to initialize buffer\n");
diff --git a/drivers/staging/android/persistent_ram.h b/drivers/staging/android/persistent_ram.h
index f41e208..5635355 100644
--- a/drivers/staging/android/persistent_ram.h
+++ b/drivers/staging/android/persistent_ram.h
@@ -38,7 +38,6 @@
 };
 
 struct persistent_ram_zone {
-	struct list_head node;
 	void *vaddr;
 	struct persistent_ram_buffer *buffer;
 	size_t buffer_size;