Remove proguard support

R8 is always used now.

Bug: 111885749
Test: m checkbuild
Change-Id: I9ae586c6360f2e3050422090b4e08f27ae167758
diff --git a/core/java_library.mk b/core/java_library.mk
index 1b914f5..9a7422d 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -57,9 +57,9 @@
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 # There are some dependencies outside the build system that assume classes.jar
 # is available as javalib.jar so copy it there too.
-$(eval $(call copy-one-file,$(full_classes_proguard_jar),$(common_javalib.jar)))
+$(eval $(call copy-one-file,$(full_classes_pre_proguard_jar),$(common_javalib.jar)))
 
-$(eval $(call copy-one-file,$(full_classes_proguard_jar),$(LOCAL_BUILT_MODULE)))
+$(eval $(call copy-one-file,$(full_classes_pre_proguard_jar),$(LOCAL_BUILT_MODULE)))
 
 else # !LOCAL_IS_STATIC_JAVA_LIBRARY