perf tests hwmon_pmu: Remove double evlist__delete()

In the error path when failing to parse events the evlist is being
deleted twice, keep the one after the out label.

Fixes: 531ee0fd ("perf test: Add hwmon "PMU" test")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/ZzzoJNNcJJVnPCCe@x1


Signed-off-by: Namhyung Kim <namhyung@kernel.org>