diff --git a/services/document-updater/scripts/flush_track_changes.js b/services/document-updater/scripts/flush_track_changes.js
deleted file mode 100644
index d218da97cb..0000000000
--- a/services/document-updater/scripts/flush_track_changes.js
+++ /dev/null
@@ -1,99 +0,0 @@
-// Flush docs found in docsWithHistory sets in the project-history redis.
-// We normally write docsWithHistory in the main redis, but some keys
-// got into the project-history redis.
-// Usage:  DRY_RUN=false node scripts/flush_track_changes.js
-
-const Settings = require('@overleaf/settings')
-const logger = require('@overleaf/logger')
-const rclientProjectHistory = require('@overleaf/redis-wrapper').createClient(
-  Settings.redis.history
-)
-const ProjectFlusher = require('../app/js/ProjectFlusher')
-const keys = Settings.redis.history.key_schema
-const request = require('request')
-const util = require('util')
-
-async function findAndProcessDocs(options) {
-  logger.info({ options }, 'flushing docs with pending track-changes')
-  let cursor = 0
-  do {
-    const [newCursor, projectKeys] = await rclientProjectHistory.scan(
-      cursor,
-      'MATCH',
-      keys.docsWithHistoryOps({ project_id: '*' }),
-      'COUNT',
-      options.limit
-    )
-    await flushProjects(projectKeys, options)
-    cursor = newCursor
-  } while (cursor !== '0')
-}
-
-async function flushProjects(projectKeys, options) {
-  const projectIds = ProjectFlusher._extractIds(projectKeys)
-  for (const projectId of projectIds) {
-    const docIds = await rclientProjectHistory.smembers(
-      keys.docsWithHistoryOps({ project_id: projectId })
-    )
-    logger.debug({ projectId, docIds }, 'checking docs')
-    if (docIds) {
-      for (const docId of docIds) {
-        try {
-          await flushDoc(projectId, docId, options)
-        } catch (err) {
-          logger.error({ projectId, docId, err }, 'error flushing doc')
-        }
-      }
-    }
-  }
-}
-
-function makeRequest(url, callback) {
-  request.post(url, function (err, res, body) {
-    if (err) {
-      return callback(err)
-    } else {
-      return callback(err, { res, body })
-    }
-  })
-}
-const makeRequestPromise = util.promisify(makeRequest)
-
-async function flushDoc(projectId, docId, options) {
-  const url = `${Settings.apis.trackchanges.url}/project/${projectId}/doc/${docId}/flush`
-  logger.debug(
-    { projectId, docId, url, options },
-    'flushing doc in track changes api'
-  )
-  if (options.dryRun) {
-    return
-  }
-  const { res, body } = await makeRequestPromise(url)
-  if (res && res.statusCode === 204) {
-    logger.debug(
-      { projectId, docId, statusCode: res.statusCode },
-      'successful flush in track changes api'
-    )
-    // on a successful flush the doc id is removed from docsWithHistoryOps by track-changes
-    // in deleteAppliedDocUpdates BUT it will do it for the main redis, not the project history redis.
-    // So we need to remove the docId here:
-    await rclientProjectHistory.srem(
-      keys.docsWithHistoryOps({ project_id: projectId }),
-      docId
-    )
-  } else {
-    logger.debug(
-      { projectId, docId, res, body },
-      'problem flushing in track changes api'
-    )
-  }
-}
-findAndProcessDocs({ limit: 1000, dryRun: process.env.DRY_RUN !== 'false' })
-  .then(result => {
-    rclientProjectHistory.quit()
-    console.log('DONE')
-  })
-  .catch(function (error) {
-    console.error(error)
-    process.exit(1)
-  })