remove DOCKER_DASH_COMPOSE_VERSION

Author: Mathiyarasy

src/docker-outside-of-docker/install.sh

@@ -362,10 +362,9 @@ if [ "${DOCKER_DASH_COMPOSE_VERSION}" != "none" ]; then
         find_version_from_git_tags compose_version "$docker_compose_url" "tags/v"
         echo "(*) Installing docker-compose ${compose_version}..."
         curl -fsSL "https://github.com/docker/compose/releases/download/v${compose_version}/docker-compose-linux-${target_compose_arch}" -o ${docker_compose_path} || {
-            if [[ $DOCKER_DASH_COMPOSE_VERSION == "latest" ]]; then 
-                install_compose_fallback "$docker_compose_url" "$compose_version" "$target_compose_arch" "$docker_compose_path"
-            else
-                echo -e "Error: Failed to install docker-compose v${compose_version}" 
+            install_compose_fallback "$docker_compose_url" "$compose_version" "$target_compose_arch" "$docker_compose_path"
+            if [ $? -ne 0 ]; then
+                 echo -e "Error: "Failed to install docker-compose v${compose_version}"
             fi
         }
         chmod +x ${docker_compose_path}