[Bug go/64999] s390x libgo test failure in TestMemoryProfiler

[vogt at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64999

--- Comment #17 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
runtime.Callers is not called in this test case, so changing it won't help.