BluetoothExt: Disable DUN profile

Disable BluetoothExt (dun profile)
from compilation.

CRs-Fixed: 2595829
Change-Id: I9f5b6d9ec53d1df74ae6b6565859046315d74304
diff --git a/bt-system-opensource-product.mk b/bt-system-opensource-product.mk
index 938db4f..310620f 100644
--- a/bt-system-opensource-product.mk
+++ b/bt-system-opensource-product.mk
@@ -30,7 +30,6 @@
 
 PRODUCT_PACKAGES += bt_logger
 PRODUCT_PACKAGES += libbt-logClient
-PRODUCT_PACKAGES += BluetoothExt
 PRODUCT_PACKAGES += libbtconfigstore
 PRODUCT_PACKAGES += vendor.qti.hardware.btconfigstore@1.0
 PRODUCT_PACKAGES += com.qualcomm.qti.bluetooth_audio@1.0