kube-proxy: minor cleanup

Get rid of overlapping helper functions.

pkg/proxy/util/utils_test.go

@@ -1183,44 +1183,6 @@ func TestWriteLine(t *testing.T) {
 	}
 }
 
-func TestWriteRuleLine(t *testing.T) {
-	testCases := []struct {
-		name      string
-		chainName string
-		words     []string
-		expected  string
-	}{
-		{
-			name:      "write no line due to no words",
-			chainName: "KUBE-SVC-FOO",
-			words:     []string{},
-			expected:  "",
-		},
-		{
-			name:      "write one line",
-			chainName: "KUBE-XLB-FOO",
-			words:     []string{"test1"},
-			expected:  "-A KUBE-XLB-FOO test1\n",
-		},
-		{
-			name:      "write multi word line",
-			chainName: "lolChain",
-			words:     []string{"test1", "test2", "test3"},
-			expected:  "-A lolChain test1 test2 test3\n",
-		},
-	}
-	testBuffer := bytes.NewBuffer(nil)
-	for _, testCase := range testCases {
-		t.Run(testCase.name, func(t *testing.T) {
-			testBuffer.Reset()
-			WriteRuleLine(testBuffer, testCase.chainName, testCase.words...)
-			if !strings.EqualFold(testBuffer.String(), testCase.expected) {
-				t.Fatalf("write word is %v\n expected: %s, got: %s", testCase.words, testCase.expected, testBuffer.String())
-			}
-		})
-	}
-}
-
 func TestWriteBytesLine(t *testing.T) {
 	testCases := []struct {
 		name     string