Run metrics_ostream_example separately in bazel.asan/tsan?

[ThomsonTan]

In below CI script, we run metrics_ostream_example separately after bazel run. Is this necessary or can be removed?

opentelemetry-cpp/ci/do_ci.sh

Line 296 in d56a5c7

//examples/metrics_simple:metrics_ostream_example > /dev/null

[lalitb]

This was added as part of this issue - #1669, seems for some race conditions which were not reproducible through unit-tests. I think can be removed, now that we don't have the issue anymore.