message: style(common): remove unnecessary jsdoc type
  These types cause the compiler to give warnings,
  which add noise to compilation logs.
  PR Close
diff: @@ -225,10 +225,9 @@ function _stripIndexHtml(url: string): string {
  *
  * @private
  * @param str value potential URI component to check.
  - * @returns {boolean} True if `value` can be decoded
  - * with the decodeURIComponent function.
  + * @returns the decoded URI if it can be decoded or else `undefined`.
  */
  -function tryDecodeURIComponent(value: string) {
  +function tryDecodeURIComponent(value: string): string|undefined {
  try {
  return decodeURIComponent(value);
  } catch (e) {
  @@ -241,7 +240,6 @@ function tryDecodeURIComponent(value: string) {
  /**
  * Parses an escaped url query string into key-value pairs. Logic taken from
  * https://github.com/angular/angular.js/blob/864c7f0/src/Angular.js#L1382
  - * @returns {Object.<string,boolean|Array>}
  */
  function parseKeyValue(keyValue: string): {[k: string]: unknown} {
  const obj: {[k: string]: unknown} = {};
  