Remove vscode:reset script

It's no longer applicable with the switch to a subtree.

ci/dev/reset-vscode.sh

@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-main() {
-  cd "$(dirname "$0")/../.."
-
-  cd ./lib/vscode
-  git add -A
-  git reset --hard
-}
-
-main "$@"

package.json

@@ -10,7 +10,6 @@
   "repository": "https://github.com/cdr/code-server",
   "scripts": {
     "clean": "./ci/build/clean.sh",
-    "vscode:reset": "./ci/dev/reset-vscode.sh",
     "build": "./ci/build/build-code-server.sh",
     "build:vscode": "./ci/build/build-vscode.sh",
     "release": "./ci/build/build-release.sh",