移除user time_zone, 统一使用submission_number和accepted_number字段

account/migrations/0004_remove_userprofile_time_zone.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.6 on 2017-08-23 09:04
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0003_userprofile_total_score'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='userprofile',
+            name='time_zone',
+        ),
+    ]