In previous versions of WP, we were able to remove permalink from images while we were inserting images into post.
But now there is no obvious option to do so. How can it be achieved?
When you insert an image to the post you see
Add media modal dialog. It has a field named
Link URL with three buttons underneath, including
None to remove the link.
When inserting images into posts and pages in WP 4.4, change the Link To under ATTTACHMENT DISPLAY SETTINGS to None.
I found this plugin to add an option to use an external link: http://wordpress.org/extend/plugins/wp-gallery-custom-links/screenshots/