RFR: 8234185: Cleanup usage of canonicalize function between libjava, hotspot and libinstrument

[Langer, Christoph]

> I plan to review this change. We also need to figure out how to remove
> the dependency on this function from the JPLIS agent as that should not
> be there.

Agree. I'd hope, however, that this can be done with a different change (unless you have an idea for a very simple, straightforward way that could fit under the umbrella of JDK- 8234185).

/Christoph