Ignore the resource limits on cgroups V1 rootless systems

This is a regression for #18052.
When podman ignores the resource limits, s.ResourceLimits needs to be
nil.

[NO NEW TESTS NEEDED]

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>

pkg/specgen/generate/validate.go

@@ -30,6 +30,7 @@ func verifyContainerResourcesCgroupV1(s *specgen.SpecGenerator) ([]string, error
 
 	// Cgroups V1 rootless system does not support Resource limits
 	if rootless.IsRootless() {
+		s.ResourceLimits = nil
 		return []string{"Resource limits are not supported and ignored on cgroups V1 rootless systems"}, nil
 	}