[libFuzzer][Windows] Temporarily disable value-profile-cmp2.test on Win

Summary:
Temporarily disable value-profile-cmp2.test on Win.
https://reviews.llvm.org/D57465 causes the test to fail on Win.
However, it seems that the behavior of libFuzzer on Win was broken
before that patch. It crashes in the exit handler when not used with
ASAN. Prior to the patch, the crash handler would run, tricking the
test into thinking libFuzzer on Win had exited properly.

Reviewers: morehouse, vitalybuka

Reviewed By: morehouse

Subscribers: yln

Differential Revision: https://reviews.llvm.org/D57551

llvm-svn: 352815