Clean up bluetooth le feature file

bug 8664724

Change-Id: I6de99c130ef59b885d2d4799a7d3a5d9abe52eb2
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 9e370c2..06eb048 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -53,3 +53,4 @@
 $(call add-clean-step, rm -f $(TARGET_OUT)/build.prop)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/etc/mixer_paths_lb.xml)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/system/etc/permissions/android.hardware.camera.xml)
+$(call add-clean-step, rm -rf $(TARGET_OUT)/etc/permissions/android.hardware.bluetooth_le.xml)