Comment # 2 on bug 1230448 from Jiri Bohac

It used to be copied to the dump directory, alongside the vmcore, for potential
users of a flattened-format vmcore that don't have makedumpfile installed.
This is now mostly useless because the crash utility itself can use the
flattened-format vmcore. Customers just copying the vmcore to us for analysis
also don't need it. So kdump no longer copies it to the dump directory.

And even if it did - it was not meant to be run on the system where it was
installed, but on the system where the vmcore was analyzed. The system where it
is installed also has the makedumpfile binary so it can be used instead.

So there is no reason to keep perl because this script is installed.