[Core] Remove some static functions create

[alxbilger]

Some functions create are very similar to BaseObject::create. They don't add anything, so they can be removed.

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• it builds with SUCCESS for all platforms on the CI.
• it does not generate new warnings.
• it does not generate new unit test failures.
• it does not generate new scene test failures.
• it does not break API compatibility.
• it is more than 1 week old (or has fast-merge label).

[alxbilger]

[ci-build][with-all-tests]