chore(cleanup): drop SOCKET_REGISTRY_PACKAGE_NAME (no remaining consumers)

After the previous commit dropped the now-dead socketRegistryPath const
from paths.mts (and its import of this constant), nothing else in the
monorepo references SOCKET_REGISTRY_PACKAGE_NAME.

Author: jdalton

packages/cli/scripts/constants/packages.mts

@@ -27,4 +27,3 @@ export const SOCKET_CLI_SENTRY_YARN_BIN_NAME = 'socket-yarn-with-sentry'
 export const NODE_MODULES = 'node_modules'
 export const PACKAGE_JSON = 'package.json'
 export const PNPM_LOCK_YAML = 'pnpm-lock.yaml'
-export const SOCKET_REGISTRY_PACKAGE_NAME = '@socketsecurity/registry-stable'