Cleanup: Remove filterfw.jar from devices.

The filter framework is now merged with frameworks.jar; remove it from
the output of incremental builds so it's not taking up needless space
on devices.

Change-Id: I2d24cecb3e52d246853ada558b2e3015222b6f58
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 5ba61ff..1096f5d 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -52,6 +52,7 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/filterpack_videosrc_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudioutils_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/filterfw_intermediates)
+$(call add-clean-step, rm -f $(PRODUCT_OUT)/system/framework/filterfw.jar)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST