Bluetooth: Removal of unused variable in btmrvl driver

This patch removes unused variable "drvdbg" from btmrvl_debugfs_data
structure.

Signed-off-by: Rahul Tank <rahult@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
index 4617bd1..d43b5cb 100644
--- a/drivers/bluetooth/btmrvl_debugfs.c
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -29,7 +29,6 @@
 	struct dentry *root_dir, *config_dir, *status_dir;
 
 	/* config */
-	struct dentry *drvdbg;
 	struct dentry *psmode;
 	struct dentry *pscmd;
 	struct dentry *hsmode;