diff --git a/Makefile.system b/Makefile.system
index bbd7e5621..ade4f9320 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -847,19 +847,6 @@ ifeq ($(DEBUG), 1)
 COMMON_OPT += -g
 endif
 
-ifndef COMMON_OPT
-ifeq ($(ARCH), arm)
-COMMON_OPT = -O3
-endif
-endif
-
-ifndef COMMON_OPT
-ifeq ($(ARCH), arm64)
-COMMON_OPT = -O3
-endif
-endif
-
-
 ifndef COMMON_OPT
 COMMON_OPT = -O2
 endif