Remove useless exception handling in Area(Block)::buildInfoObject()

[jdreesen]

The exception handling in Area(Block)::buildInfoObject() was rather useless.

In Area, $info was set to null in case of an error, but later $info->setParams(...) gets called, which would crash.

In Areablock, an error was logged if one of the first three setters failed (which is rather unlikely), and I think it'll be better to fail hard in this case.

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I also simplified the code to determine the $params a bit.

[github-actions[bot]]

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• [x] Target branch (10.5 for bug fixes, others 11.x)
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[aryaantony92]

@jdreesen Thank you!