Fixed a remaining typo in logout.

agroener · agroener · commit 8d710d20adda · 2014-09-22T08:11:52.000-04:00
diff --git a/astroquery/cosmosim/core.py b/astroquery/cosmosim/core.py
@@ -115,7 +115,6 @@ def logout(self,deletepw=False):
                     print("Password for {} was never stored in the keychain.".format(self.username))
                     
             del self.session
-            del self._BaseQuery__session
             del self.username
             del self.password
         else:
