Remove libicu*.so from /system

Bug: 120659668
Test: CtsJniTestCases
Change-Id: I1c2ab41aa0b19f71025e2dd09be9b9bd306e8616
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 1c02da6..757c513 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -617,6 +617,9 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/super.img)
 
 $(call add-clean-step, find $(PRODUCT_OUT) -type f -name "generated_*_image_info.txt" -print0 | xargs -0 rm -f)
+
+# Clean up libicuuc.so and libicui18n.so
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib*/libicu*)
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************