Remove obsolete ENABLE_TREBLE references.

ENABLE_TREBLE compiler flags are no longer used. They have been replaced
with use of the VINTF object.

Bug: 32978887
Test: pass
Change-Id: I2e6509037637537073357f255b49a39de78c88e6
diff --git a/device.mk b/device.mk
index efb7467..2596693 100644
--- a/device.mk
+++ b/device.mk
@@ -190,11 +190,6 @@
     Tag \
     android.hardware.nfc@1.0-impl
 
-ifeq ($(ENABLE_TREBLE), true)
-PRODUCT_PACKAGES += \
-    android.hardware.nfc@1.0-service
-endif
-
 # Bluetooth HAL
 PRODUCT_PACKAGES += \
     android.hardware.bluetooth@1.0-impl