perf test: Remove cpu-list BPF cgroup counter test

JIRA: https://issues.redhat.com/browse/RHEL-33006

upstream
========
commit c741c7b
Author: Michael Petlan <mpetlan@redhat.com>
Date: Fri Nov 1 11:28:12 2024 +0100

description
===========
The cpu-list part of this testcase has proven itself to be unreliable.
Sometimes, we get "<not counted>" for system.slice when pinned to CPUs
0 and 1. In such case, the test fails.

Since we cannot simply guarantee that any system.slice load will run
on any arbitrary list of CPUs, except the whole set of all CPUs, let's
rather remove the cpu-list subtest.

Fixes: a84260e ("perf test stat_bpf_counters_cgrp: Enhance perf stat cgroup BPF counter test")
    Signed-off-by: Michael Petlan <mpetlan@redhat.com>
    Cc: vmolnaro@redhat.com
    Cc: bpf@vger.kernel.org
    Link: https://lore.kernel.org/r/20241101102812.576425-1-mpetlan@redhat.com
    Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Signed-off-by: Michael Petlan <mpetlan@redhat.com>

Author: rfmvh

tools/perf/tests/shell/stat_bpf_counters_cgrp.sh

@@ -58,22 +58,9 @@ check_system_wide_counted()
 	fi
 }
 
-check_cpu_list_counted()
-{
-	check_cpu_list_counted_output=$(perf stat -C 0,1 --bpf-counters --for-each-cgroup ${test_cgroups} -e cpu-clock -x, taskset -c 1 sleep 1  2>&1)
-	if echo ${check_cpu_list_counted_output} | grep -q -F "<not "; then
-		echo "Some CPU events are not counted"
-		if [ "${verbose}" = "1" ]; then
-			echo ${check_cpu_list_counted_output}
-		fi
-		exit 1
-	fi
-}
-
 check_bpf_counter
 find_cgroups
 
 check_system_wide_counted
-check_cpu_list_counted
 
 exit 0