Remove BUILD_BROKEN_ENG_DEBUG_TAGS

All users have been removed.

Test: treehugger
Change-Id: I2cfe720bef88cc5485e90746d85a7e0a5d068ef7
Merged-In: I2cfe720bef88cc5485e90746d85a7e0a5d068ef7
diff --git a/core/config.mk b/core/config.mk
index 57c1d7a..8d08495 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -97,6 +97,7 @@
 $(KATI_obsolete_var TARGET_ROOT_OUT_SBIN_UNSTRIPPED,/sbin has been removed, use /system/bin instead)
 $(KATI_obsolete_var BUILD_BROKEN_PHONY_TARGETS)
 $(KATI_obsolete_var BUILD_BROKEN_DUP_COPY_HEADERS)
+$(KATI_obsolete_var BUILD_BROKEN_ENG_DEBUG_TAGS)
 
 # This is marked as obsolete in envsetup.mk after reading the BoardConfig.mk
 $(KATI_deprecate_export It is a global setting. See $(CHANGES_URL)#export_keyword)