8260406: Do not copy pure java source code to gensrc

Reviewed-by: alanb, erikj

Author: magicus

make/modules/java.base/gensrc/GensrcCharacterData.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -62,14 +62,6 @@ $(eval $(call SetupCharacterData,CharacterData02, -string -plane 2, 11 4 1))
 $(eval $(call SetupCharacterData,CharacterData03, -string -plane 3, 11 4 1))
 $(eval $(call SetupCharacterData,CharacterData0E, -string -plane 14, 11 4 1))
 
-# Copy two Java files that need no preprocessing.
-$(SUPPORT_OUTPUTDIR)/gensrc/java.base/java/lang/%.java: $(CHARACTERDATA)/%.java.template
-	$(call LogInfo, Generating $(@F))
-	$(call install-file)
-
-GENSRC_CHARACTERDATA += $(SUPPORT_OUTPUTDIR)/gensrc/java.base/java/lang/CharacterDataUndefined.java \
-    $(SUPPORT_OUTPUTDIR)/gensrc/java.base/java/lang/CharacterDataPrivateUse.java
-
 $(GENSRC_CHARACTERDATA): $(BUILD_TOOLS_JDK)
 
 TARGETS += $(GENSRC_CHARACTERDATA)