sensorservice: Remove ENABLE_TREBLE flag.

Only hidl hals should be built/referenced by the framework,
and ENABLE_TREBLE will be deprecated soon.

Bug: 32978887
Test: compiles/wip
Change-Id: Ibb32129e1f30ae5baa15e116d3b13cc72bf27395
diff --git a/services/sensorservice/Android.mk b/services/sensorservice/Android.mk
index c41630a..d61f26f 100644
--- a/services/sensorservice/Android.mk
+++ b/services/sensorservice/Android.mk
@@ -10,6 +10,7 @@
     OrientationSensor.cpp \
     RecentEventLogger.cpp \
     RotationVectorSensor.cpp \
+    SensorDevice.cpp \
     SensorDirectConnection.cpp \
     SensorEventConnection.cpp \
     SensorFusion.cpp \
@@ -25,13 +26,6 @@
 
 LOCAL_CFLAGS += -fvisibility=hidden
 
-ifeq ($(ENABLE_TREBLE), true)
-LOCAL_SRC_FILES += SensorDeviceTreble.cpp
-LOCAL_CFLAGS += -DENABLE_TREBLE=1
-else
-LOCAL_SRC_FILES += SensorDevice.cpp
-endif
-
 LOCAL_SHARED_LIBRARIES := \
     libcutils \
     libhardware \
@@ -42,10 +36,6 @@
     libui \
     libgui \
     libcrypto \
-
-ifeq ($(ENABLE_TREBLE), true)
-
-LOCAL_SHARED_LIBRARIES += \
     libbase \
     libhidlbase \
     libhidltransport \
@@ -55,8 +45,6 @@
 LOCAL_STATIC_LIBRARIES := \
     android.hardware.sensors@1.0-convert
 
-endif  # ENABLE_TREBLE
-
 LOCAL_MODULE:= libsensorservice
 
 include $(BUILD_SHARED_LIBRARY)