Fix empty transaction destruction

mercurial/transaction.py

@@ -26,7 +26,8 b' class transaction:'
 
     def __del__(self):
         if self.entries: self.abort()
-        self.close()
+        try: os.unlink(self.journal)
+        except: pass
 
     def add(self, file, offset):
         self.entries.append((file, offset))