src/vs/workbench/contrib/tasks/browser/abstractTaskService.ts/AbstractTaskService/removeRecentlyUsedTask
class AbstractTaskService:	public removeRecentlyUsedTask(taskRecentlyUsedKey: string) {
		if (this._getTasksFromStorage('historical').has(taskRecentlyUsedKey)) {
			this._getTasksFromStorage('historical').delete(taskRecentlyUsedKey);
			this._saveRecentlyUsedTasks();
		}
	}