Fixed the failing architecture tests in jenkins - update and delete

please review it
thanks

Tests covered : 
tests.foreman.cli.test_architecture.TestArchitecture.test_negative_update_1
tests.foreman.cli.test_architecture.TestArchitecture.test_positive_delete

Also, attaching the output of the results after execution
https://gist.github.com/tkolhar/40ca0c7d113e768abe44
While you're at it, could you drop the closing parentheses down? Doing so makes it easier to sort these lines. (for example, I execute `:.,.6 !sort` in vim)

        gen_string('latin1', 300),
        gen_string('html', 300),
    )