perf kwork top: Simplify bool conversion

./tools/perf/util/bpf_kwork_top.c:120:53-58: WARNING: conversion to bool not needed here

Signed-off-by: Yang Li <[e-mail]>
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Namhyung Kim <[e-mail]>

tools/perf/util/bpf_kwork_top.c

···
 
 static bool valid_kwork_class_type(enum kwork_class_type type)
 {
-	return type >= 0 && type < KWORK_CLASS_MAX ? true : false;
+	return type >= 0 && type < KWORK_CLASS_MAX;
 }
 
 static int setup_filters(struct perf_kwork *kwork)