Remove debug code

models/file.js

@@ -67,7 +67,7 @@ class File extends Model {
     });
 
     let p7zip = new (require('node-7z')), zipFile = await tmp.tmpName() + '.zip';
-    console.log(await p7zip.add(zipFile, filenames));
+    await p7zip.add(zipFile, filenames);
 
     await fs.removeAsync(dir.path);
 

modules/problem.js

@@ -574,7 +574,6 @@ app.post('/problem/:id/submit', app.multer.fields([{ name: 'answer', maxCount: 1
         try {
           path = await File.zipFiles(JSON.parse(req.body.answer_by_editor));
         } catch (e) {
-          console.log(e);
           throw new ErrorMessage('无法解析提交数据。');
         }
       } else {