git-hide
Simply allows you to toggle the visibility of files and folders in the treeview according to .gitignore file.
Git Hide package
This package allows you to automatically hide files and folders according to the .gitignore
file you may have at the root of your project.
You can use ctrl+h
to toggle the visibility of the ignored files.
The package basically only had a keyboard shorcut for hide VCS option of the atom/tree-view
package.
So make sure you have it installed.