[billreminder] Removed duplicated import.

[Og B. Maciel <ogmaciel src gnome org>]

commit 3e82aa26bf12055ed3ee8b5aec2fd7caf3a1daef
Author: Og B. Maciel <ogmaciel gnome org>
Date:   Sat Dec 18 12:14:24 2010 -0500

    Removed duplicated import.

 src/db/entities.py |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/db/entities.py b/src/db/entities.py
index 3d938d3..7bb282b 100644
--- a/src/db/entities.py
+++ b/src/db/entities.py
@@ -51,7 +51,6 @@ class Bill(Base):
 if __name__ == 'main':
     from sqlalchemy.orm import sessionmaker
     from sqlalchemy import create_engine
-    from sqlalchemy.orm import sessionmaker
     from datetime import date
 
     engine = create_engine('sqlite:///:memory:', echo=True)