Another breaking test because of stricter iso parser

This time there is am added at the end, which was never parsed as part of iso
format, so if it was pm it would result in a wrong parse.

Deleting this test. Docs don't say this is possible, right :)
Merge pull request #1185 from ichernev/bugfix/do-not-handle-ampm-end-of-iso

Another breaking test because of stricter iso parser