It is not entirely meaningless. It might be an indicator that
the number of calls to a method is intentionally unlimited.
This is similar to e.g. an @inheritDoc PHPDoc comment that
marks a method as being "intentionally undocumented".
However, what's the meaning of being "intentionally
unconstrained"? Let's just not have any constraint then.
I feel all these ->expects( $this->any() ) bloat the test
code so much that it's never worth it.
Change-Id: I9925e7706bd03e1666f6eb0b284cb42b0dd3be23