Thankfully, you can selectively disable those you don't want to use from an extended shortcut panel in the drop - down notifications menu. (slashgear.com)
And, with a long tap on the app's icon, you can get notification menu for the app along with other shortcuts and widgets. (techtree.com)
If you're on Android 5.0 or higher, there's a new notification menu that will allow you to block notifications from any app. (android.gadgethacks.com)