Merge pull request #15870 from overleaf/em-revert-docops-migration

Revert docOps migration to the docs collection

GitOrigin-RevId: cdb46321c5aa349bead0990dcd270e703e3debc7

services/web/migrations/20231108221857_move_doc_versions_from_docops_to_docs.js

@@ -1,33 +0,0 @@
-const { ReadPreference } = require('mongodb')
-
-exports.tags = ['server-ce', 'server-pro', 'saas']
-
-exports.migrate = async ({ db }) => {
-  const records = db.docOps.find(
-    {},
-    { readPreference: ReadPreference.secondaryPreferred }
-  )
-
-  let docsProcessed = 0
-  for await (const record of records) {
-    const docId = record.doc_id
-    const version = record.version
-    await db.docs.updateOne(
-      {
-        _id: docId,
-        version: { $exists: false },
-      },
-      { $set: { version } }
-    )
-    docsProcessed += 1
-    if (docsProcessed % 100000 === 0) {
-      console.log(`${docsProcessed} docs processed`)
-    }
-  }
-}
-
-exports.rollback = async ({ db }) => {
-  // Nothing to do on rollback. We don't want to remove versions from the docs
-  // collection because they might be more current than the ones in the docOps
-  // collection.
-}