Remove hardcoded ICU include paths.

ICU exports them using LOCAL_EXPORT_C_INCLUDE_DIRS.

bug: 18581021
Change-Id: I20e9b4b0fbc5a6c3fac17e8b3ad7bfe2fa57a2cd
diff --git a/CleanSpec.mk b/CleanSpec.mk
index b84e1b6..0f8393f 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -44,6 +44,9 @@
 #$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
 #$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
 
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libxml2_intermediates)
+$(call add-clean-step, rm -rf $(HOST_OUT)/obj/STATIC_LIBRARIES/libxml2_intermediates)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************