TUN-813: Clean up cloudflared dependencies

vendor/github.com/opentracing/opentracing-go/log/field_test.go

@@ -1,39 +0,0 @@
-package log
-
-import (
-	"fmt"
-	"testing"
-)
-
-func TestFieldString(t *testing.T) {
-	testCases := []struct {
-		field    Field
-		expected string
-	}{
-		{
-			field:    String("key", "value"),
-			expected: "key:value",
-		},
-		{
-			field:    Bool("key", true),
-			expected: "key:true",
-		},
-		{
-			field:    Int("key", 5),
-			expected: "key:5",
-		},
-		{
-			field:    Error(fmt.Errorf("err msg")),
-			expected: "error:err msg",
-		},
-		{
-			field:    Error(nil),
-			expected: "error:<nil>",
-		},
-	}
-	for i, tc := range testCases {
-		if str := tc.field.String(); str != tc.expected {
-			t.Errorf("%d: expected '%s', got '%s'", i, tc.expected, str)
-		}
-	}
-}