Removed duplicate lines.

configure/CONFIG_ADDONS

@@ -122,15 +122,6 @@ BIN_INSTALLS+=$(BIN_INSTALLS_DEFAULT)
 endif
 endif
 
-ifneq ($(strip $(LIBRARY_$(OS_CLASS))),)
-LIBRARY+=$(subst -nil-,,$(LIBRARY_$(OS_CLASS)))
-else
-ifneq (,$(LIBRARY_DEFAULT))
-#ifdef LIBRARY_DEFAULT
-LIBRARY+=$(LIBRARY_DEFAULT)
-endif
-endif
-
 ifneq ($(strip $(OBJS_$(OS_CLASS))),)
 OBJS+=$(subst -nil-,,$(OBJS_$(OS_CLASS)))
 else