Remove no-op

Change-Id: I2bb2c44dd97974fa3cc19ccb6c6c7f0c3ef9bc58
diff --git a/Android.mk b/Android.mk
index d54118b..3e0c97b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -252,9 +252,6 @@
 ifeq ($(TW_INCLUDE_BLOBPACK), true)
     LOCAL_CFLAGS += -DTW_INCLUDE_BLOBPACK
 endif
-ifeq ($(TW_DEFAULT_EXTERNAL_STORAGE), true)
-    LOCAL_CFLAGS += -DTW_DEFAULT_EXTERNAL_STORAGE
-endif
 ifneq ($(TARGET_USE_CUSTOM_LUN_FILE_PATH),)
     LOCAL_CFLAGS += -DCUSTOM_LUN_FILE=\"$(TARGET_USE_CUSTOM_LUN_FILE_PATH)\"
 endif