Remove unused IExtendedNetworkService

It was used in the cupcake era for docomo.  Is not used anymore.

Bug 7633569

Change-Id: I2ec826fc9a70d261a340957a937ed4c9f8e67c5c
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 14b3681..1779114 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -137,6 +137,8 @@
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/ImageProcessing_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/ImageProcessing2_intermediates)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/ImageProcessing_intermediates)
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/telephony/java/com/android/internal/telephony/IExtendedNetworkService.java)
+$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/telephony/java/com/android/internal/telephony/IExtendedNetworkService.P)
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************