more cleanup

database.py

@@ -1,6 +1,5 @@
 import json
 from datetime import datetime
-from hashlib import sha256
 
 from sqlalchemy import Column, DateTime, Integer, PickleType, String, create_engine
 from sqlalchemy.ext.declarative import declarative_base, declared_attr
@@ -12,14 +11,6 @@ engine = create_engine('sqlite:///electron.db')
 db = scoped_session(sessionmaker(bind=engine))
 
 
-class DateTimeEncoder(json.JSONEncoder):
-    def default(self, o):
-        if isinstance(o, datetime):
-            return o.isoformat()
-
-        return json.JSONEncoder.default(self, o)
-
-
 Base = declarative_base()
 
 
@@ -39,12 +30,6 @@ class BaseModel(Base):
         """
         return {c.name: getattr(self, c.name) for c in self.__table__.columns}
 
-    def to_json(self):
-        """
-        Helper method to convert any database row to JSON
-        """
-        return json.dumps(self.to_dict(), sort_keys=True, cls=DateTimeEncoder)
-
 
 class Peer(BaseModel):
     identifier = Column(String(32), primary_key=True)