chore(docs): remove ref to single image (#921)

Remove reference to install script

Author: jdpleiness

docs/admin/deploy/machine-images/aws-oneclick.mdx

@@ -2,7 +2,7 @@
 
 This page describes how to launch a verified and pre-configured Sourcegraph instance in just ~10 minutes using our one-click CloudFormation template and standard AMIs.
 
-Prefer manually installing on AWS yourself? See our [AMI](/admin/deploy/machine-images/aws-ami) installation options or our [script-install](/admin/deploy/single-node/script) installation options.
+Prefer manually installing on AWS yourself? See our [AMI](/admin/deploy/machine-images/aws-ami) installation options.
 
 ## Prerequisites