[PATCH] perf tools: Remove redundant code

Fix the following coccicheck warnings:

./tools/perf/util/evlist.c:1315:5-8: Unneeded variable: "err". Return "-
ENOMEM" on line 1340.

Reported-by: Abaci Robot <redacted>
Signed-off-by: Jiapeng Chong <redacted>
---
 tools/perf/util/evlist.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 882cd1f..6c2a271 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c

@@ -1313,7 +1313,6 @@ static int evlist__create_syswide_maps(struct evlist *evlist)
 {
 	struct perf_cpu_map *cpus;
 	struct perf_thread_map *threads;
-	int err = -ENOMEM;
 
 	/*
 	 * Try reading /sys/devices/system/cpu/online to get

@@ -1338,7 +1337,7 @@ static int evlist__create_syswide_maps(struct evlist *evlist)
 out_put:
 	perf_cpu_map__put(cpus);
 out:
-	return err;
+	return -ENOMEM;
 }