fix typos in auth.py

koji/auth.py

@@ -707,6 +707,7 @@ class Session(object):
     def removeKrbPrincipal(self, name, krb_principal):
         select = """SELECT id FROM users
                     JOIN user_krb_principals
+                    ON users.id = user_krb_principals.user_id
                     WHERE name = %(name)s
                     AND krb_principal = %(krb_principal)s"""
         cursor = context.cnx.cursor()
@@ -720,7 +721,7 @@ class Session(object):
         else:
             user_id = r[0]
         delete = """DELETE FROM user_krb_principals
-                    WHERE user_id = (%(user_id)i
+                    WHERE user_id = %(user_id)i
                     AND krb_principal = %(krb_principal)s"""
         cursor.execute(delete, locals())
         context.cnx.commit()