Bluetooth: Remove dead code

Variable 'controller' is assigned a value that is never used.
Identified by cppcheck tool.

Signed-off-by: Gowtham Anandha Babu <gowtham.ab@samsung.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c
index 1ca8a87..75bd2c4 100644
--- a/net/bluetooth/cmtp/capi.c
+++ b/net/bluetooth/cmtp/capi.c
@@ -253,8 +253,6 @@
 			if (skb->len < CAPI_MSG_BASELEN + 15)
 				break;
 
-			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 10);
-
 			if (!info && ctrl) {
 				int len = min_t(uint, CAPI_MANUFACTURER_LEN,
 						skb->data[CAPI_MSG_BASELEN + 14]);
@@ -270,8 +268,6 @@
 			if (skb->len < CAPI_MSG_BASELEN + 32)
 				break;
 
-			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
-
 			if (!info && ctrl) {
 				ctrl->version.majorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 16);
 				ctrl->version.minorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 20);
@@ -285,8 +281,6 @@
 			if (skb->len < CAPI_MSG_BASELEN + 17)
 				break;
 
-			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
-
 			if (!info && ctrl) {
 				int len = min_t(uint, CAPI_SERIAL_LEN,
 						skb->data[CAPI_MSG_BASELEN + 16]);