FIO-9280 removed outdated test

[HannaKurban]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-9280

Description

Since the value property check has been removed from the Use tab and the ValueProperty check is triggered only when User trying to save SelectBoxes component in the FormBuilder, the test is outdated. Instead, tests have been added to check the Value Property in the core library

Breaking Changes / Backwards Compatibility

n/a

Dependencies

n/a

How has this PR been tested?

tests pass locally

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