Remove files associated with compiling linux-kernel-modules.c

Bionic doesn't have stdio_ext.h which is needed by functions in
linux-kernel-modules.c and dependent ones. Since perf can be selectively
disabled to use older interface, we don't need to compile these files
anymore.

Change-Id: I3803eefd5565a1fe607f3889c600e713954abb14
diff --git a/CleanSpec.mk b/CleanSpec.mk
index b84e1b6..b083f67 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -44,6 +44,15 @@
 #$(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 $(OUT)/obj/STATIC_LIBRARIES/libdw_intermediates)
+$(call add-clean-step, rm -rf $(OUT)/obj/STATIC_LIBRARIES/libdwfl_intermediates)
+$(call add-clean-step, rm -rf $(OUT)/obj/STATIC_LIBRARIES/libelf_intermediates)
+$(call add-clean-step, rm -rf $(OUT)/obj/STATIC_LIBRARIES/libebl_intermediates)
+$(call add-clean-step, rm -rf $(ANDROID_HOST_OUT)/obj/STATIC_LIBRARIES/libdw_intermediates)
+$(call add-clean-step, rm -rf $(ANDROID_HOST_OUT)/obj/STATIC_LIBRARIES/libdwfl_intermediates)
+$(call add-clean-step, rm -rf $(ANDROID_HOST_OUT)/obj/STATIC_LIBRARIES/libelf_intermediates)
+$(call add-clean-step, rm -rf $(ANDROID_HOST_OUT)/obj/STATIC_LIBRARIES/libebl_intermediates)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************