mtd/ftl: drop the useless VirtualPageMap in partition_t

This is not used by any code now. Just drop it.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index 19d6372..71f2782 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -111,7 +111,6 @@
     struct mtd_blktrans_dev mbd;
     uint32_t		state;
     uint32_t		*VirtualBlockMap;
-    uint32_t		*VirtualPageMap;
     uint32_t		FreeTotal;
     struct eun_info_t {
 	uint32_t		Offset;
@@ -1035,8 +1034,6 @@
 {
 	vfree(part->VirtualBlockMap);
 	part->VirtualBlockMap = NULL;
-	kfree(part->VirtualPageMap);
-	part->VirtualPageMap = NULL;
 	kfree(part->EUNInfo);
 	part->EUNInfo = NULL;
 	kfree(part->XferInfo);