perf script: Simplify bool conversion

  Fix the following coccicheck warning:
  ./tools/perf/builtin-script.c:2789:36-41: WARNING: conversion to bool
  not needed here
  ./tools/perf/builtin-script.c:3237:48-53: WARNING: conversion to bool
  not needed here
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/1612773936-98691-1-git-send-email-yang.lee@linux.alibaba.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-script.c

@@ -2795,7 +2795,7 @@ static int parse_output_fields(const struct option *opt __maybe_unused,
 				break;
 		}
 		if (i == imax && strcmp(tok, "flags") == 0) {
-			print_flags = change == REMOVE ? false : true;
+			print_flags = change != REMOVE;
 			continue;
 		}
 		if (i == imax) {
@@ -3243,7 +3243,7 @@ static char *get_script_path(const char *script_root, const char *suffix)
 
 static bool is_top_script(const char *script_path)
 {
-	return ends_with(script_path, "top") == NULL ? false : true;
+	return ends_with(script_path, "top") != NULL;
 }
 
 static int has_required_arg(char *script_path)