remove old postTools requires

src/topics/follow.js

@@ -9,7 +9,6 @@ var async = require('async'),
 	db = require('../database'),
 	user = require('../user'),
 	posts = require('../posts'),
-	postTools = require('../postTools'),
 	notifications = require('../notifications'),
 	privileges = require('../privileges'),
 	meta = require('../meta'),

src/topics/fork.js

@@ -9,7 +9,6 @@ var async = require('async'),
 	user = require('../user'),
 	posts = require('../posts'),
 	privileges = require('../privileges'),
-	postTools = require('../postTools'),
 	plugins = require('../plugins'),
 	threadTools = require('../threadTools');
 

src/user/notifications.js

@@ -11,7 +11,6 @@ var async = require('async'),
 	meta = require('../meta'),
 	notifications = require('../notifications'),
 	posts = require('../posts'),
-	postTools = require('../postTools'),
 	topics = require('../topics'),
 	privileges = require('../privileges'),
 	utils = require('../../public/src/utils');