The internalCommit argument in the image dialog seems to be totally unused

[Piotrek Koszuliński]

The argument was added in #4246, because there's nothing about it in:

​http://dev.ckeditor.com/browser/CKEditor/trunk/_source/plugins/image/dialogs/image.js?rev=4684

and plenty of it here:

​http://dev.ckeditor.com/browser/CKEditor/trunk/_source/plugins/image/dialogs/image.js?rev=4686

For all these years I thought that it serves some purpose, but I cannot find any. In our tests and the one I performed manually commit() is never called with more arguments than two. Therefore I propose to remove these lines.

There's still a small chance that someone (perhaps some external plugin, because none of ours seem to rely on this argument either) uses this argument, so I propose to make this change in 4.5.0.

[Piotrek Koszuliński]

Fixed on major with ​git:10a7105.