Facebook with time has gone through many changes, if you are frequent user of facebook you might have added different applications on your facebook profile which keeps appearing on the left side navigation menu as shown in the image below.
Just in case you don’t want to see some links of apps and other options you can easily delete them in some options and they will be shown and will go the normally hidden list of options which are not shown as usual.
In order to delete or hide any of these apps or options you just need to place your cursor on the left side where it shows you a cross to hide these apps as shown in the image below.
You just need to click cross icon shown on the left side of the app or option entry to hide it. Just in case when ever you want to see all hidden apps, you just need to click see hidden link to access all the hidden apps and options which are not shown in the left side bar list as shown in the image below.