message: frontend: Remove unused urlEncode() and urlDecode()
diff: -// Encode a labels object hash into a URL query string.
  -export const urlEncode = labels => {
  - var result = _.map(_.keys(labels), function(key) {
  - return `${key}=${labels[key]}`;
  - });
  - return result.join(',');
  -};
  -
  export const linkEncode = labels => {
  var result = _.map(_.keys(labels), function(key) {
  return `${key}%3D${labels[key]}`;
  });
  return result.join(',');
  };
  -
  -// Decode a URL query string into a labels object hash.
  -export const urlDecode = query => {
  - if (!query) {
  - return {};
  - }
  - return _.reduce(query.split(','), function(prev, val) {
  - var parts;
  - if (!val) {
  - return prev;
  - }
  - parts = val.split('=');
  - if (_.isEmpty(parts) || parts.length !== 2) {
  - return prev;
  - }
  - prev[parts[0]] = parts[1];
  - return prev;
  - }, {});
  -};
  