revert changes in modesl/comment

lib/models/comment.js

@@ -36,10 +36,8 @@ module.exports = function(crowi) {
           debug('Error on saving comment.', err);
           return reject(err);
         }
-        data.populate('page', function(err, datas) {
-          debug('Comment saved.', datas);
-          return resolve(datas);
-        });
+        debug('Comment saved.', data);
+        return resolve(data);
       });
     });
   };

lib/util/slack.js

@@ -109,7 +109,6 @@ module.exports = function(crowi) {
       text: body,
       mrkdwn_in: ['text'],
     };
-
     if (user.image) {
       attachment.author_icon = user.image;
     }
@@ -138,7 +137,6 @@ module.exports = function(crowi) {
       text: body,
       mrkdwn_in: ['text'],
     };
-
     if (user.image) {
       attachment.author_icon = user.image;
     }