perf print-events: Remove redundant comparison with zero

Since variable npmus is unsigned int, comparing with 0 is unnecessary.
Signed-off-by: Kang Minchul <tegongkang@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221105135932.81612-1-tegongkang@gmail.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/print-events.c

@@ -311,10 +311,8 @@ int print_hwcache_events(const char *event_glob, bool name_only)
 				if ((hybrid_supported == 0) ||
 				    (hybrid_supported == npmus)) {
 					evt_list[evt_i] = strdup(name);
-					if (npmus > 0) {
-						for (j = 0; j < npmus; j++)
-							zfree(&evt_pmus[j]);
-					}
+					for (j = 0; j < npmus; j++)
+						zfree(&evt_pmus[j]);
 				} else {
 					for (j = 0; j < hybrid_supported; j++) {
 						evt_list[evt_i++] = evt_pmus[j];