Remove GLOBAL_JAVAC_DEBUG_FLAGS

GLOBAL_JAVAC_DEBUG_FLAGS is no longer set, -g is already included
in the javac command line.  Jack is on its way out, just use -g
directly there for now.

Test: m -j checkbuild
Change-Id: Ib99c248bbb8b65fa2cd2b55449a502fc20deffa8
diff --git a/core/java.mk b/core/java.mk
index 8545947..3cc7246 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -448,7 +448,7 @@
 $(java_source_list_file): $(java_sources_deps)
 	$(write-java-source-list)
 
-$(full_classes_compiled_jar): PRIVATE_JAVACFLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JAVACFLAGS) $(annotation_processor_flags)
+$(full_classes_compiled_jar): PRIVATE_JAVACFLAGS := $(LOCAL_JAVACFLAGS) $(annotation_processor_flags)
 $(full_classes_compiled_jar): PRIVATE_JAR_EXCLUDE_FILES := $(LOCAL_JAR_EXCLUDE_FILES)
 $(full_classes_compiled_jar): PRIVATE_JAR_PACKAGES := $(LOCAL_JAR_PACKAGES)
 $(full_classes_compiled_jar): PRIVATE_JAR_EXCLUDE_PACKAGES := $(LOCAL_JAR_EXCLUDE_PACKAGES)
@@ -766,7 +766,7 @@
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_PROGUARD_FLAGS :=
 endif # LOCAL_PROGUARD_ENABLED defined
 
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS) $(annotation_processor_flags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := -g $(LOCAL_JACK_FLAGS) $(annotation_processor_flags)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
 
 jack_all_deps := \