diff --git a/files/prebuild/write-client-config.sh b/files/prebuild/write-client-config.sh
deleted file mode 100755
index 985e5654..00000000
--- a/files/prebuild/write-client-config.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash -eu
-set -o pipefail
-
-if [[ $OIDC_ENABLED != 'true' ]] && [[ $OIDC_ENABLED != 'false' ]]; then
-  echo 'OIDC_ENABLED must be either true or false'
-  exit 1
-fi
-
-envsubst < files/nginx/client-config.json.template > /tmp/client-config.json