Delete unused var.

Change-Id: Ib6c295287f064529a8b4d8ada15a9fbb73064f1e
diff --git a/core/combo/HOST_darwin-x86.mk b/core/combo/HOST_darwin-x86.mk
index ca396eb..d0fc291 100644
--- a/core/combo/HOST_darwin-x86.mk
+++ b/core/combo/HOST_darwin-x86.mk
@@ -68,10 +68,8 @@
 @echo "preparing StaticLib: $(PRIVATE_MODULE) [including $(1)]"
 $(hide) ldir=$(PRIVATE_INTERMEDIATES_DIR)/WHOLE/$(basename $(notdir $(1)))_objs;\
     mkdir -p $$ldir; \
-    filelist=; \
     for f in `$(TARGET_AR) t $(1)`; do \
         $(TARGET_AR) p $(1) $$f > $$ldir/$$f; \
-        filelist="$$filelist $$ldir/$$f"; \
     done ;
 
 endef