Fix cc compiler flags in netem/Makefile
diff --git a/netem/Makefile b/netem/Makefile
index 6d1272b..59c7e08 100644
--- a/netem/Makefile
+++ b/netem/Makefile
@@ -7,7 +7,7 @@
 all: $(DISTGEN) $(DISTDATA)
 
 $(DISTGEN):
-	$(HOSTCC) $(CCOPTS) -Wall -O1 -I../include -o $@ $@.c -lm
+	$(HOSTCC) $(CCOPTS) -I../include -o $@ $@.c -lm
 
 %.dist: %
 	./$* > $@