Clean up dead/hosted code [zh2310] (#2430)

* Clean up dead/hosted code

* Remove schema conversion tool and related
* Remove cxg references
* Remove locust

* missed a spot

* Remove aws secret manager

* Merge branch 'main' into brodgers/2310/code-cleanup-v1

* cleanup merge

backend/server/cli/cli.py

@@ -3,7 +3,6 @@ import click
 from .launch import launch
 from .prepare import prepare
 from .upgrade import log_upgrade_check
-from .schema import schema_cli
 from .. import __version__
 
 
@@ -30,4 +29,3 @@ def cli(upgrade_check):
 
 cli.add_command(launch)
 cli.add_command(prepare)
-cli.add_command(schema_cli)