Allow using openj9 with arm

configure-instance.sh

@@ -13,9 +13,4 @@ sed -i "s/FRONTEND_HOSTNAME/$frontend/g" config/*
 sed -i "s/BACKEND_HOSTNAME/$backend/g" config/*
 sed -i "s/PROXY_HOSTNAME/$proxy/g" config/*
 
-# The openj9 image does not support aarch64
-if [[ "$(uname -m)" == "aarch64" ]]; then
-    sed -i "s/piped:latest/piped:hotspot/g" config/*
-fi
-
 mv config/docker-compose.$reverseproxy.yml docker-compose.yml