remove migrate-token-pool.js (#8931)

Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>

scripts/migrate-token-pool.js

-import pg from 'pg'
-import RedisTokenPersistence from '../core/token-pooling/redis-token-persistence.js'
-
-let redisUrl, postgresUrl
-
-try {
-  redisUrl = process.argv[2]
-  postgresUrl = process.argv[3]
-  if (
-    !redisUrl.startsWith('rediss://') ||
-    !postgresUrl.startsWith('postgresql://')
-  ) {
-    throw new Error()
-  }
-} catch (e) {
-  process.stdout.write(
-    'Usage: migrate-token-pool.js [redis-url] [postgres-url]\n'
-  )
-  process.exit(1)
-}
-
-;(async () => {
-  const redis = new RedisTokenPersistence({
-    url: redisUrl,
-    key: 'githubUserTokens',
-  })
-
-  const tokens = await redis.initialize()
-  await redis.stop()
-  console.log(`${tokens.length} tokens in redis source`)
-
-  const pool = new pg.Pool({ connectionString: postgresUrl })
-
-  let bulkInsert = 'INSERT INTO github_user_tokens (token) VALUES '
-  bulkInsert += tokens.map(token => `('${token}')`).join(',')
-  bulkInsert += ' ON CONFLICT (token) DO NOTHING;'
-  await pool.query(bulkInsert)
-
-  const result = await pool.query('SELECT COUNT(*) FROM github_user_tokens;')
-  console.log(`${result.rows[0].count} tokens in postgres dest`)
-  await pool.end()
-})()