ProjectDeleter.archiveProject doesn't need to get entire project

services/web/app/coffee/Features/Project/ProjectDeleter.coffee

@@ -1,4 +1,5 @@
 Project = require('../../models/Project').Project
+ProjectGetter = require("./ProjectGetter")
 logger = require('logger-sharelatex')
 documentUpdaterHandler = require('../DocumentUpdater/DocumentUpdaterHandler')
 tagsHandler = require("../Tags/TagsHandler")
@@ -34,7 +35,7 @@ module.exports = ProjectDeleter =
 
 	archiveProject: (project_id, callback = (error) ->)->
 		logger.log project_id:project_id, "deleting project"
-		Project.findById project_id, (err, project)=>
+		ProjectGetter.getProject project_id, {owner_ref:1, collaberator_refs:1, readOnly_refs:1}, (err, project)=>
 			if err? or !project?
 				logger.err err:err, project_id:project_id, "error getting project to delete it"
 				callback(err)

services/web/test/UnitTests/coffee/Project/ProjectDeleterTests.coffee

@@ -25,12 +25,15 @@ describe 'ProjectDeleter', ->
 		@editorController = notifyUsersProjectHasBeenDeletedOrRenamed : sinon.stub().callsArgWith(1)
 		@TagsHandler = 
 			removeProjectFromAllTags: sinon.stub().callsArgWith(2)
+		@ProjectGetter =
+			getProject:sinon.stub()
 		@deleter = SandboxedModule.require modulePath, requires:
 			"../Editor/EditorController": @editorController
 			'../../models/Project':{Project:@Project}
 			'../DocumentUpdater/DocumentUpdaterHandler': @documentUpdaterHandler
 			"../Tags/TagsHandler":@TagsHandler
 			"../FileStore/FileStoreHandler": @FileStoreHandler = {}
+			"./ProjectGetter": @ProjectGetter
 			'logger-sharelatex':
 				log:->
 
@@ -89,6 +92,7 @@ describe 'ProjectDeleter', ->
 
 	describe "archiveProject", ->
 		beforeEach ->
+			@ProjectGetter.getProject.callsArgWith(2, null, @project)
 			@Project.update.callsArgWith(2)
 
 		it "should flushProjectToMongoAndDelete in doc updater", (done)->