remove if statments checking if s3 is a backend

if its not enable then it can crash. In prod it should always be there
or not used at all

services/track-changes/app.coffee

@@ -27,9 +27,8 @@ app.post "/project/:project_id/doc/:doc_id/version/:version/restore", HttpContro
 
 app.post "/doc/:doc_id/pack", HttpController.packDoc
 
-if Settings.filestore?.backend == "s3"
-	app.get  '/project/:project_id/archive', HttpController.archiveProject
-	app.get  '/project/:project_id/unarchive', HttpController.unArchiveProject
+app.get  '/project/:project_id/archive', HttpController.archiveProject
+app.get  '/project/:project_id/unarchive', HttpController.unArchiveProject
 
 packWorker = null # use a single packing worker
 

services/track-changes/app/coffee/DocArchiveManager.coffee

@@ -10,8 +10,6 @@ settings = require("settings-sharelatex")
 module.exports = DocArchiveManager =
 
 	archiveAllDocsChanges: (project_id, callback = (error, docs) ->) ->
-		if settings.filestore?.backend != "s3"
-			return callback(null)
 		DocstoreHandler.getAllDocs project_id, (error, docs) ->
 			if error?
 				return callback(error)
@@ -42,8 +40,6 @@ module.exports = DocArchiveManager =
 							callback()
 
 	unArchiveAllDocsChanges: (project_id, callback = (error, docs) ->) ->
-		if settings.filestore?.backend != "s3"
-			return callback(null)
 		DocstoreHandler.getAllDocs project_id, (error, docs) ->
 			if error?
 				return callback(error)