Method delete

github-actions/browserstack/set-browserstack-env.js:12342–12350

* @see https://fetch.spec.whatwg.org/#concept-header-list-delete * @param {string} name * @param {boolean} isLowerCase

(name, isLowerCase)

          /** @type {[string, string][]|null} */
          __publicField(this, "cookies", null);
          if (init instanceof _HeadersList) {
            this[kHeadersMap] = new Map(init[kHeadersMap]);
            this[kHeadersSortedMap] = init[kHeadersSortedMap];
            this.cookies = init.cookies === null ? null : [...init.cookies];
          } else {
            this[kHeadersMap] = new Map(init);
            this[kHeadersSortedMap] = null;
          }
        }
        /**
         * @see https://fetch.spec.whatwg.org/#header-list-contains
         * @param {string} name