G-7460: eleminate violations

[PhilippSalvisberg]

There are 46 violations of G-7460 in SonarCloud.

Some of them are valid and some are false positives. The problem with this guideline is that there is no non-deterministic clause. So we cannot know if a function is defined non-deterministic by purpose. I suggest that we add a -- NOSONAR: non-deterministic marker where necessary.