aurweb.models.user: Remove session.commit() from construction

We don't want to do this on construction. We only want to do this
when we want to actually add the user to the database (or modify it).

Signed-off-by: Kevin Morris <kevr@0cost.org>

aurweb/models/user.py

@@ -51,11 +51,9 @@ class User:
             self.update_password(passwd)
 
     def update_password(self, password, salt_rounds=12):
-        from aurweb.db import session
         self.Passwd = bcrypt.hashpw(
             password.encode(),
             bcrypt.gensalt(rounds=salt_rounds)).decode()
-        session.commit()
 
     @staticmethod
     def minimum_passwd_length():