Stop pretending USE_OPENGL_RENDERER is a thing

Change-Id: I732b490431fe90eafa00a00f3b5429f0d3a067e6
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 1b73fbd..aa8db26 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -2,16 +2,12 @@
 include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
-# Only build libhwui when USE_OPENGL_RENDERER is
-# defined in the current device/board configuration
-ifeq ($(USE_OPENGL_RENDERER),true)
-    LOCAL_MODULE_CLASS := SHARED_LIBRARIES
-    LOCAL_MODULE := libhwui
-    LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+LOCAL_MODULE := libhwui
+LOCAL_MODULE_TAGS := optional
 
-    include $(LOCAL_PATH)/Android.common.mk
+include $(LOCAL_PATH)/Android.common.mk
 
-    include $(BUILD_SHARED_LIBRARY)
+include $(BUILD_SHARED_LIBRARY)
 
-    include $(call all-makefiles-under,$(LOCAL_PATH))
-endif
+include $(call all-makefiles-under,$(LOCAL_PATH))