Remove unused audit-ci dependency

There is a `yarn ci` script which was using audit-ci but this does not
appear to be called anywhere.

The security worflow uses `yarn audit` and `npm audit` which seem fine
enough anyway.

ci/README.md

@@ -24,8 +24,6 @@ This directory contains scripts used for the development of code-server.
   - Runs unit tests.
 - [./ci/dev/test-e2e.sh](./dev/test-e2e.sh) (`yarn test:e2e`)
   - Runs end-to-end tests.
-- [./ci/dev/ci.sh](./dev/ci.sh) (`yarn ci`)
-  - Runs `yarn fmt`, `yarn lint` and `yarn test`.
 - [./ci/dev/watch.ts](./dev/watch.ts) (`yarn watch`)
   - Starts a process to build and launch code-server and restart on any code changes.
   - Example usage in [./docs/CONTRIBUTING.md](../docs/CONTRIBUTING.md).

ci/dev/audit.sh

@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-main() {
-  cd "$(dirname "$0")/../.."
-
-  # Prevents integration with moderate or higher vulnerabilities
-  # Docs: https://github.com/IBM/audit-ci#options
-  yarn audit-ci --moderate
-}
-
-main "$@"

ci/dev/ci.sh

@@ -1,13 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-main() {
-  cd "$(dirname "$0")/../.."
-
-  yarn fmt
-  yarn lint
-  yarn _audit
-  yarn test:unit
-}
-
-main "$@"