runtime tests

[Frank Ch. Eigler]

Stan Cox <scox@redhat.com> writes:

> Here is a list of which stp_ routines are called by
> runtime/{probes,tests}/*/*.c, in order to help determine if the
> testsuite/systemtap.*/*.stp tests are sufficient coverage.  [...]

OK, let's nuke 'em, especially considering that they haven't been
integrated into the main test suite (see also bug #3547) and so are
run approximately never.

- FChE