Markov: clean up the whole "need to create our own db object" thing

modules/Markov.py

@@ -411,9 +411,8 @@ class Markov(Module):
         try:
             # need to create our own db object, since this is likely going to be in a new thread
             dbfile = self.config.get('dr.botzo', 'database')
-            conn = sqlite3.connect(dbfile)
-            conn.row_factory = sqlite3.Row
-            db = conn
+            db = sqlite3.connect(dbfile)
+            db.row_factory = sqlite3.Row
             query = 'SELECT target FROM markov_chatter_target'
             cursor = db.execute(query)
             results = cursor.fetchall()