integral.eo:30-32: Fix integral tests. Since new...

[0pdd]

The puzzle 105-4cf141c2 from #105 has to be resolved:

eo-math/src/main/eo/org/eolang/math/integral.eo

Lines 30 to 32 in e4098ee

	# @todo #105:30min. Fix integral tests. Since new declarative "while" was
	# introduced current implementation of integral is not relevant anymore. Need
	# to remake it and unwrap tests

The puzzle was created by rultor on 19-Feb-23.

Estimate: 30 minutes, role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.

[0pdd]

@maxonfjvipon please pay attention to this new issue.