Dropped useless fields from User model.

misago/users/models.py

@@ -131,19 +131,14 @@ class User(models.Model):
     allow_pms = models.PositiveIntegerField(default=0)
     receive_newsletters = models.BooleanField(default=True)
     topics = models.PositiveIntegerField(default=0)
-    topics_delta = models.IntegerField(default=0)
     posts = models.PositiveIntegerField(default=0)
-    posts_delta = models.IntegerField(default=0)
     votes = models.PositiveIntegerField(default=0)
-    votes_delta = models.IntegerField(default=0)
     karma_given_p = models.PositiveIntegerField(default=0)
     karma_given_n = models.PositiveIntegerField(default=0)
     karma_p = models.PositiveIntegerField(default=0)
     karma_n = models.PositiveIntegerField(default=0)
-    karma_delta = models.IntegerField(default=0)
     following = models.PositiveIntegerField(default=0)
     followers = models.PositiveIntegerField(default=0)
-    followers_delta = models.IntegerField(default=0)
     score = models.IntegerField(default=0,db_index=True)
     rank = models.ForeignKey('ranks.Rank',null=True,blank=True,db_index=True,on_delete=models.SET_NULL)
     last_sync = models.DateTimeField(null=True,blank=True)