Remove an array from an array of arrays

I'm totally new to Javascript. I'm working with data from a business database and I want to remove an array from array of arrays.

I have this array of array:

var results = [ [#null, null], ['miglioramento', 30], ['correttiva',45] ];

I want to remove the first array: [#null, null] from results because I want to achieve this array:

results = [ ['miglioramento', 30], ['correttiva',45] ];

How can I do this?

I really thank you in advance!