[DSE-Dev] Bug#1030222: Bug#1030222: selint: please restrict check only where valgrind is available

[Christian Göttsche]

> Would it be possible to check and restrict valgrind dependency only on the above architectures?

I am probably going to drop the dependency on valgrind completely, as
the testsuite with valgrind also fails on mipsel (maybe some DWARF
incompatibility?).
Valgrind is used in the upstream CI, and I am also regularly run
SELint with sanitizers.

I'll wait with a new upload till a new upstream release (which
contains for example a fix for the flaky s390x autopkgtest), hopefully
released sometime this week (see
https://github.com/SELinuxProject/selint/issues/259).