logs: consolidate unit tests

TestFlags got superseded by TestFlagSet/pflag in
8251a63269.

staging/src/k8s.io/component-base/logs/api/v1/options_test.go

@@ -32,23 +32,6 @@ import (
 	"k8s.io/klog/v2"
 )
 
-func TestFlags(t *testing.T) {
-	c := NewLoggingConfiguration()
-	fs := pflag.NewFlagSet("addflagstest", pflag.ContinueOnError)
-	output := bytes.Buffer{}
-	AddFlags(c, fs)
-	fs.SetOutput(&output)
-	fs.PrintDefaults()
-	want := `      --log-flush-frequency duration   Maximum number of seconds between log flushes (default 5s)
-      --logging-format string          Sets the log format. Permitted formats: "text". (default "text")
-  -v, --v Level                        number for the log level verbosity
-      --vmodule pattern=N,...          comma-separated list of pattern=N settings for file-filtered logging (only works for text log format)
-`
-	if !assert.Equal(t, want, output.String()) {
-		t.Errorf("Wrong list of flags. expect %q, got %q", want, output.String())
-	}
-}
-
 func TestOptions(t *testing.T) {
 	newOptions := NewLoggingConfiguration()
 	testcases := []struct {