Fix eslint error

Author: feelepxyz

lib/commands/audit.js

@@ -228,12 +228,6 @@ class VerifySignatures {
 
     const registry = fetch.pickRegistry(spec, this.npm.flatOptions)
     const keys = this.keys.get(registry) || []
-    const validKeys = keys.filter((publicKey) => {
-      if (!publicKey.expires) {
-        return true
-      }
-      return Date.parse(publicKey.expires) > Date.now()
-    })
 
     try {
       const registryConfig = {}