FIO-8632: Fixes an issue where required validation is not triggered for multiple value components like Select if it has no values added

[alexandraRamanenka]

https://formio.atlassian.net/browse/FIO-8632

Description

The check I removed was added for the https://formio.atlassian.net/browse/FIO-8336, but the issue is we have Multiple Value flag working differently with different components. For some of them (like Text Field) it treats each value separetely (so if we set Requied validation, it will make sure that we have at least 1 value in the array and that we don't have any empty values in the array even if it has 1 or more values) and some components as a Select one with Multiple Valu flag looks still as a single component with one row, but allows add multiple value, so the required validation should check the whole value

Breaking Changes / Backwards Compatibility

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Dependencies

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How has this PR been tested?

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Checklist:

• I have completed the above PR template
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above

[brendanbond]

Tests are failing

[travist]

Please talk with Alexey about this change. He explicitly made a change to fix something here f4a904b. I want to ensure that whatever he was fixing will now not be broken when we pull this change into place.

Also, I would like to see a test that also tests for the case that Alexey was fixing with his change.