diff --git a/config/functions b/config/functions
index 362b4eaabd..f299b41a6a 100644
--- a/config/functions
+++ b/config/functions
@@ -1,9 +1,4 @@
 setup_toolchain() {
-  if [ "$1" = "--optimize" ]; then
-    OPTIMIZE=yes
-    shift
-  fi
-
   if [ "$1" = target ]; then
     export DESTIMAGE="target"