This fixes a regression that was introduced in MySQL 5.6.6
in an error handling code path, in the following change:

commit 024f363d6b5f09b20d1bba411af55be95c7398d3
Author: kevin.lewis@oracle.com <>
Date:   Fri Jun 15 09:01:42 2012 -0500

    Bug #14169459 INNODB; DROP TABLE DOES NOT DELETE THE IBD FILE
    FOR A TEMPORARY TABLE.